I've been one of the people saying "we don't need more users. we need quality over quantity" and i was wrong.
the way it's going, lemmy needs active users who post content sothat the network stays relevant. networks like the fediverse benefit from network effects and that means that if we have more users, that improves the value and quality of the fediverse overall.
So please, everyone, when you can, make advertisement for the fediverse in your personal area. Go talk to friends, make attractive stickers and put them everywhere, stuff like that. We would all benefit from it.
edit: source for the graph
the only way to not have an echo chamber where people vote with their emotions is to have an enlightened gnosticism user-base which is obviously very difficult to get and nurture but i'm trying :)
the best way to do this is to cultivate an atmosphere of discussion and in-depth thought regularly, which you can do by engaging with these discussions and seeking enlightenment yourself.