Because lemmy is small, so the natural brigading that comes from everyone being able to see all the posts means smaller/unpopular communities will have these natural downvote noise. I see this in monero, linus tech tips, communities all the time. There are people with a axe to grind, and rather then blocking a community they just want to be negative. it brings them joy, so be it.

Lemmy would benefit from community tools, like requiring participation before votes count, or posting karma, etc.

Growing small communities should be a priority for lemmy