It's hard, we probably made too many communities too quickly lol. But then again if you have a topic you're obsessed about then it's nice to have somewhere to post without worrying about spamming. Like I can't just endlessly post things about The 7th Guest or Deus Ex Randomizer to a normal games community, but spamming my own communities I do get some upvotes so I guess some people enjoy these posts.
I feel like people have been conditioned by Reddit to be hesitant about making posts. There's no reason for posting to have a high barrier of entry. Maybe we need to be more willing to post things, like people chatting in Discord.
And comments too, especially comments in old posts, Lemmy handles it way better than Reddit so feel free to drop comments in year old posts lol. Occasionally sort your feed by "New Comments" or "Active". I have a widget on my phone's home screen that shows my Subscribed feed sorted by New Comments. It was fun with old school forums and it's still fun on Lemmy.
Everyone else is linking their communities so what the hell https://lemmy.mods4ever.com/communities
Also !retrostatus@retrolemmy.com
And I post a lot to !idm@lemm.ee and !speedrun@sh.itjust.works even though I'm not a mod