I have been noticing a drop in post/comments diversity and quantity. The diminishing users is something noticeable and sad.

We’re in times where we need to seek alternatives to big tech more than ever, and yet, people don’t seem to care :(

it’s not just not caring. lemmy is currently not a viable alternative for e.g. reddit (there are no active conmunities for any of mine hobbies and posting to any of those that are here doesn’t make sense - there is nobody out here who could respond to a specific question about analog photography or something similar). fediverse as a whole will never reach the momentum of old centralized social media - by design. it turns out that having many small servers with different moderation policies is great for resilience but sucks for bringing people together. i found out recently that my mastodon server is blacklisted on many of mainstream ones not because there is some bad content there but because it federates with some servers that mods somewhere else consider harmful… and so i am missing large swats of content from those.
i find out alot of people i blocked are the likely posters, yea thats probably why im seeing less and less posts now.
I’m not talking about people I block (I am not exposed enough and don’t suffer enough harassment so I don’t block almost anyone)… I’m talking about about mods of the instancr that hosts people I care about suddenly blocking instance that hosts my account - not because anything we did but because they didn’t like that mods of my instance didn’t block another instance that has some weird (e.g. transfobic) content. I follow a friend and suddenly we are out of contact because some entirely unrelated drama. And that’s how fediverse works by design.
Ah yes, cancel culture. The Left always eats its own (and btw the Right does the same, eventually, but usually waits to win against the Left first).