The problem is that a lot of ppl at level 50 forget that they're playing a game and it's supposed to be fun, it's not about getting the best gear and then complaining they have nothing to do.
I prefer doing low level roulettes cause newer players are more chatty, they are playing it for fun and I usually have a lot more fun doing dungeons with them than the tank that starts running as soon as everyone's in, not waiting for buffs or anything.

I started doing expert roulette as my ilvl 68 monk, cause that will prevent speedruns. And like the op said, it's stressfull and that's nothing I want when I just get home from work.

Also: Please SE implement a mute button so that I can mute ppl being rude and play without being annoyed by random arguments