When I started playing the game, I was a gladiator. I got to my first dungeon and had no idea how dungeons even worked yet or how to properly get and hold agro. I told the group I was new to the game and had no idea what I was doing. They took the time to explain the basic mechanics and give me tips as we went on. No one was angry, or forceful. Everyone seemed happy to help and I was grateful for it.

Granted, this is Sastasha (normal) so things are different in this scenario but it should apply to anything really. A poor player needs to accept tips on how to improve and vets should be able to provide that help without being yelled at just for doing it. (Unless they are being rude of course)

I became a mentor because I wanted to help the newer players. I've had some enjoyable times when I ran mentor roulette and ended up in a place with new people to the run and I had to explain the fight/dungeon mechanics while everyone listened and followed instructions. I generally like doing that kind of thing. Often enough in a typical dungeon though I'm afraid to point out times where I can plainly see someone is playing poorly because of the reasons described in this topic.