The guide
How to read subreddit stats
Member counts are the least useful number on Reddit. Here is what to look at instead when you decide where to spend your time.
Posts per day: is anyone still here?
Posting pace is the clearest sign of life. A subreddit that publishes dozens of posts a day is busy; one that publishes a post a week is close to dead no matter how many members it has, because members who joined years ago never leave the count.
Watch for heavily moderated subreddits. When mods approve every post by hand, the public only sees a few posts a day even though many more are submitted. A low pace with very high comments per post usually means a tight filter, not a quiet crowd.
Comments per post and the no-reply rate
Engagement tells you whether posts get read. The median comments per post shows what a typical post gets, not the one viral outlier. The no-reply rate is the share of new posts nobody answered. If most posts go unanswered, the audience is scrolling, not talking, and a question or reply there will struggle to get attention.
Subreddit size vs. subreddit fit
Big subreddits bury new posts in minutes and tend to be strict about promotion. Smaller niche subreddits often convert better: your post stays visible for hours, members read it, and they're there for exactly the topic you sell into. Use the stats to shortlist communities that are active and engaged, then check their rules before you post.
Choosing subreddits for marketing
A good marketing subreddit has three things: steady activity, replies on most posts, and members asking the kind of question your product answers. The first two are what this tool measures. For the third, Bazzly shows how many customer conversations it has found in the subreddits it monitors, and the Subreddit Finder suggests communities based on your product.