I am new to MMOs, this is the first MMO I have played, so for me I was very unaware of a lot of concepts that most MMO players are well aware of already.

I've never had any complaints really from anyone when playing as a tank luckily, I try to be nice to everyone in my party and not make anyone feel bad if they feel they have done something wrong, if a DPS does something wrong, or a healer dies and doesn't heal me, as long as they recognize mistakes I will reassure them, as I expect they would for mistakes I make as well.

As a healer, I've had an arrogant tank who thought he was the shit and blamed me for them dying because they didn't pull enemies off me, and I couldn't heal them fast enough.

I've also had a tank who would use Convalescence before a pull and randomly cast cure on themselves for no reason, or flash when no enemies were around in Brayflox, I got so mad as to how they could play so bad, but I never said anything to them rude.