Hope OP were not seeking "performance" on PUG grops...

Then, I did see too much times that "advice" were consisting on yelling at the poor guy how "bad" he is, sometime with added hints about unstalling the game, rather than constructive hints. So, well, if the advice is quite intimidatory, I suppose the advisor hardly will get a "thank you" for it.

Then I also received rude replies to genuine advice, but hey, there is so much people around, we cannot make a couple bad guys a sample for a whole community. So far, people is nice and bad apples here and there but not so much to say the server is a nest of snakes...