Reddit Contributor Quality Score (CQS), explained

If your comments keep getting filtered in some communities while friends with older accounts post freely, CQS is often part of the reason. It’s one of the main ways Reddit and moderators decide whether to trust an account before a human ever looks at its content.

Reddit documents more about it than most people realise, in its help articles for moderators. Here’s what it says, how moderators use it, and the practical steps that improve how your account is classified over time.

What Reddit says CQS is

In Reddit’s words, CQS “is a user classification that was established to identify potential spammers or users less likely to contribute positively on Reddit”. Every account gets one, based on “a host of signals including past actions taken on a user’s account, network and location signals, and steps a user has taken to secure their account (e.g. email verification)”.

Reddit adds that scores “are updated regularly, and users have the ability to move up or down tiers based on their activity and/or behavior.” A low score isn’t permanent, and the behaviour that raises it is the same behaviour that makes your contributions useful to communities in the first place.

Why Reddit uses a score at all

Large communities get far more posts than moderators can read. A score lets them filter likely spam before it reaches anyone, while letting trusted members post freely. From a moderator’s point of view, a few genuine comments held in the queue are a fair price for keeping out hundreds of spam ones. Understanding that makes the filter less frustrating: it isn’t judging you personally, it’s judging how your account looks compared with the accounts that usually turn out to be spam.

How moderators use it

CQS matters because moderators can filter on it. There are two main ways.

1. AutoModerator rules

Moderators can use CQS through the contributor_quality field in AutoModerator. Reddit’s own examples show how it’s typically combined with karma:

# Filter comments from users with <5 subreddit karma and low/lowest CQS
type: comment
author:
    combined_subreddit_karma: "< 5"
    contributor_quality: "< moderate"
action: filter

# Filter all posts from users with "lowest" CQS, regardless of karma
type: submission
author:
    contributor_quality: "= lowest"
action: filter

Another of Reddit’s examples does the opposite: it lets High and Highest accounts skip a community’s karma minimum. So a good CQS can get you past rules that would otherwise stop a newer account.

2. The reputation filter

The reputation filter is a setting moderators can switch on. Reddit says it filters content “by users who may be potential spammers, are likely to have content removed, or have unestablished accounts”, and is “informed by the Contributor Quality Score, which uses karma, verification, and other account signals”.

• It filters based on the account’s behaviour, not on what the post says.
• Moderators choose between “high” filtering (more content filtered) and “moderate” filtering (less).
• Filtered content goes to the mod queue, where moderators can approve it.
• Approved users in a community aren’t caught by the filter.

What affects your score

Reddit doesn’t publish the formula, and you can’t see your own score. But between the CQS article, the reputation filter article and the spam policy, the signals are clear enough to act on:

Reddit also notes that verifying with a common, well-established email domain is “one way to let us know that you’re likely to use Reddit in good faith”, while making clear it’s only one of several signals.

What moderators see

When the reputation filter holds back a post or comment, it lands in the community’s mod queue. Reddit says moderators then see the content “with information about the user”. They can approve it, which publishes it, or leave it removed.

That means a filtered comment isn’t necessarily lost. In active communities, moderators review the queue and often approve genuine contributions from newer accounts. What they look for is simple: does this person seem to be here to take part, or to promote? A history of useful comments in that community makes approval much more likely. A history of links to one website makes it unlikely.

A worked example

Say a product manager joins Reddit to answer questions in a community about their industry. In the first week, they write eight good comments there. Three appear normally; five sit in the mod queue for a day before being approved; one is never approved.

That pattern fits a new account in a community that uses the reputation filter or a CQS rule. Nothing is wrong with the content. The account simply hasn’t built the signals yet. The product manager verifies their email, turns on two-factor authentication, keeps commenting a few times a day, and adds some activity in communities about their hobbies. By week four, almost every comment appears straight away, and a moderator offers approved-user status after noticing their answers.

If the same person had instead posted links to their company’s blog in that first week, the outcome would likely have been very different: removals, possible reports, and a history that makes the score harder to raise.

How to improve your CQS

1. Verify your email. It’s a signal Reddit names directly, it takes two minutes, and it also protects you from being locked out of the account.
2. Turn on two-factor authentication. Another step to secure your account, which Reddit lists as a factor.
3. Participate genuinely and steadily. A few useful comments most days beats a burst of activity once a month.
4. Start in friendly communities. Build karma where filters are light before posting in strict, business-focused communities.
5. Avoid removals. Read rules before posting. Each removal adds to your account’s history.
6. Keep to one account per person, used from your normal devices.
7. Stay away from spam patterns: repeated links, mass DMs, reposting old content for karma, automation.
8. Ask to become an approved user in communities you contribute to often. It bypasses the reputation filter there.

For a new account, our 30-day warm-up plan builds exactly these signals in a sensible order.

CQS vs karma vs account age

These three are often confused because they all affect whether your posts show up. They’re separate:

Communities often combine them. Reddit’s own example filters comments from users with under 5 karma in the community and a CQS below Moderate. So an account can have plenty of karma elsewhere and still be filtered in a community where it has none.

How to tell if CQS is filtering you

You can’t see your tier, but the pattern is recognisable:

• Your comments appear for you but not for logged-out visitors in certain communities, while appearing normally in others.
• It happens mostly in large or business-focused communities, which are more likely to use strict filters.
• Your account is new, has little karma, or has had content removed recently.
• Some filtered comments appear later, after a moderator approves them from the queue.

If your profile doesn’t load at all when logged out, that’s a different problem: a possible sitewide flag. See our shadowban guide for how to check and appeal.

A four-week plan to raise your standing

Four weeks won’t take a new account to the top tier, but it builds the signals Reddit describes and usually gets you past the lightest filters. Keep the same rhythm afterwards; steady participation is what keeps a score moving up.

Common myths about CQS

• “Reddit Premium raises your score.” Reddit says Premium doesn’t affect its spam filter, and nothing in its CQS article mentions paying.
• “High karma means high CQS.” Karma is one signal among several. An account with high karma and recent spam behaviour can still score low.
• “A low score is permanent.” Reddit says scores update regularly and users can move up or down.
• “CQS judges what you write.” The reputation filter that uses it works on the account’s behaviour, not on the content of a post.
• “You can check your CQS with a tool.” Reddit doesn’t show the score to users. Third-party “CQS checkers” can only guess.

What CQS means for businesses on Reddit

For brands, CQS explains why “create an account and post” fails so reliably. A new company account with no history, posting links to its own site, sits in a low tier and hits every filter in the communities where buyers talk.

• Build accounts before you need them. Start participation months before a launch.
• Use real team members’ personal accounts, disclosed, alongside a brand account. Established personal accounts often have better standing than a new brand account.
• Never share accounts across many people or run several accounts per person. That creates exactly the network signals that hurt scores.
• Keep promotion rare. Reddit’s spam policy asks people who post mostly about their own business to “be thoughtful about the frequency of posting”.

Our guides to brand vs personal accounts and Reddit marketing for SaaS build on this.

Common mistakes

• Skipping email verification. It’s the easiest signal to fix.
• Chasing karma alone. Karma helps, but CQS looks at more than karma.
• Posting in strict communities first. Build history where filters are lighter.
• Ignoring removals. Each one is part of your account’s record. Learn the rule and adjust.
• Assuming a low score is permanent. Reddit says scores update regularly.