Yeah, part of the problem here is how things are setup to be as profitable as possible so cram as many people as possible into the space.

And even the Diablo discord has its share of just insanely toxic people

Depending on how crowded it is you should generally be fine.

So, how PvP zones work: If you are not flagged up, you cannot attack others who aren't flagged up. If you are flagged up, you can attack anyone, but you can also be attacked by anyone, whether or not they are flagged.

Only level 65 rogue, but man, rapid fire destroys once it comes online, AoE can still be kinda rough if I go full brainless, but I can still easily wreck house in nightmare 24 maps(highest I've tried so far), even the bosses just melt.