Normally, I'd say post more, but from a glace at your profile, you're already posting more than I would expect any individual to (Thank you.)

Beyond this, we need the Fediverse to expand to the point were it can achive a critical mass and the networking effect and its own momentum will keep it running. In my own personal opinion, there is two main avenues we need to tackle:

1. Gaining/Keeping new users: As it stands, Lemmy has low visibility, and when new users do try to learn more, it's extremely inaccessible. Keep in mind that even Reddit was seen as kinda niche and inaccessible, nonetheless as a defederated platform filled with elitist political and tech nerds. To improve these, one avenue is to engage in more marketing and onboarding. Things like colourful, "How to use Lemmy" image decks, screenshots reposted on other platforms, or just straight propaganda posters. We also need to improve the experience in the Fediverse, although this is more about being friendly and supportive, and calling out elitism and assholery. Larger movements like what is needed here happen through a sense of community.
2. Lack of compelling content: As it stands, there is far too little content on the fediverse, nonetheless anything standout. We need both more broad appeal content and more high-quality content if we want to draw users from other platforms. Options for this range in complexity from simply asking users to post/comment more (even a simple, complementary comment helps encourage others to post more), to writing bots to make relevant posts to the appropriate communities like Reddit did in the early days, to making more original content for Lemmmy (or at least released to Lemmy early), or even sponsoring/commissioning more work to be posted here.

IMO, we need a combination of both of these avenues if we want to achive the critical mass needed to make the Fediverse successful.