There are some tight groups, but number of active users is very low and getting lower, number of serves is also decreasing.
I did some random sampling and it looks like large number of active users are talking to void and may not have realized it. They post regularly, have 100s of followers but no active followers.
The most popular servers like mastodon.social are cesspools of snark, anger and grandstanding. Oh, and the moderation is random/nonexistent depending on the day.