lemm ee: The owners don’t really moderate and its users reflect this fact. Universally unpleasant userbase.
This is categorically untrue. You can find our administration policy here, and we frequently ban users for breaking our instance rules. At most you could make the claim that we are lenient when it comes to things like heated arguments, as we often give warnings or temporary bans to users in such cases, but on the other hand, our "no bigotry" rule is very strict, and violations have consistently resulted in permanent bans.
We of course don't screen all posts and comments which our users write, so we can only respond to reports, but I assure you that our admin team is constantly going over and responding to the report queue (which is a big effort, and clearly a thankless job).
By the way, I just want to point out that we have ~3000 active monthly users on lemm.ee, I find it very unlikely that you can make an accurate universal judgement about such a huge group of people.