I mean, the fellow is the golden poster boy of Dunning-Kruger effect. The most overly competent pugger ever to be seen....and has tough time with proving grounds. How he doesn't see how absurd that is, god knows, but it sure is funny read.
On LFR topic: I didn't luck out by joining 10 stacks raid like many seem to. I had to wipe all those 10 times, and ~15 on top of that until we killed him. It helped that there was about 10 of us who stayed since the beginning. The difficulty was the other 15, who kept changing at a pace of 5-10 new people per wipe. There was constant stream of new people who failed the mechanics, making it nightmare for those who had already been doing them fine for hours. Oh, and when we did kill him, we had about half the raid alive for the last phase. Others we had to kill due to MC, and them not listening to us telling them to jump off the edge and die before MC, to not waste our time.