The only thing that really grinds my gears is when someone tells me I'm doing something wrong or bad but then doesn't give me any constructive criticism or advice and continues to complain or insultZ

Example. My first time running Halatali normal for msq. I let the group know it's my first time and we go on into the dungeon. I was still learning how to tank properly and on the second mob one of the dps says something along the lines of "are you using your abilities or do you know how to use them?" I replied that I did and we get to the first boss and wipe. I didn't know the mechanics at the time because I was running it blind without looking at a guide first which I started doing after this. So after the wipe the dps calls me a bad tank and continued to insult me until the group kicked me. I was so ready to just start shouting profanity at that guy. If he was willing to help me I would've been fine but that kind of attitude to insult and not help really made me mad.