off-topic but since you mentioned kbin: I’m using both platforms right now (beehive/lemmy and kbin)…from what I’m seeing so far I really prefer lemmy’s implementation of pretty much everything. Kbin itself is not any more or less complicated to sign up and start posting, but its organization is definitely more convoluted. Speaking of threads vs. microblogs etc. I read a FAQ posted there and it barely cleared things up for me.
There are a ton of comments there, but I guess it depends where you’re looking. To me, it seems like it’s defaulting to “threads” - which are roughly equivalent to posts, as near as I can tell (they have subjects and a body). Whereas Microblog seems to be like posting to Facebook/Twitter/Mastodon. Where I see little activity are on Magazines (their version of communities or subreddits). E.g. kbin.social/m/ELI5 has 4 threads. The default home page shows many, many threads, and some have comparable comment replies to lemmy here.