

Those niche communities work on reddit because there is a huge userbase to keep them alive. If you create them here, you get an empty community that looks dead, which discourages people from posting.
Having an active “hobbies” community going first, and then later splitting off the “knitting” community when it’s clear that there are lots of knitters means that you don’t get empty dead communities.
You can’t force the niche community into existence, it has to grow organically.













I personally dislike the cross posting in lemmy, as it results in seeing the same post 3-4 times in a row, which is kinda annoying as well. I believe piefed does it better (dunno if anyone can confirm that?).