The main thing is post more. Lack of content is the main reason people don’t use Lemmy more, and the only way to fix this is to share/produce more.

Its a bit of an unpopular opinion, but I think even (transparent, community-relevant) bots are a good idea at this point, given that 99% of interests have little to no activity currently. For example, if we had bots that post game update changelogs to their relevant communities, it would at least provide a baseline amount of content and make it easier to discuss for fans of those games.