Actually, a lot of people use Lemmy, and there's pretty decent content on it in the communities. I post Linux stuff mostly and my threads get a lot of comments. Or I'll ask questions like "What are everybody's cool not so well known websites" and get a ton of feedback. Accounts are accessible via Mastodon as well, it isn't ideal, but, it's some kind of start.

So, lots of people use it, actually. I haven't noticed any bots replying to each other like what Reddit is now adays reposting content and reposting top comments.