Iβve seen a lot of lemmy instances with like 1 user a month. Seriously? What the fuck?
You don't understand the nature of federation. It's perfectly valid to create a single-user lemmy instance (just like many mastodon servers are for a single user) and use it to connect to other instances.
I'm on a low-population instance. You're on an instance with roughly 350 users. My instance blocks no servers, your block around 20.
Even if it was just me here and 1000 users on lemmy.ml, I'd still have access to more of the lemmyverse than you can ever have.