For me the top 5 bosses I "remember like they were yesterday" are:
1. Vancleef (DM - not a raid, but shh)
2. Kael-Thas (all forms)
3. Opera (BC / Kara)
4. Nefarian (Cata)
5. Garrosh (MoP -_-)
???
Bro...from what I've seen he said he was the best Holy Priest. Not the best player ever. You're totally misrepresenting him now.
You called someones bluff, and they had a royal flush. You have a 3, a 9, a Dorito, and a moldy slice of cheese. It can be quite empowering to simply say "you know what mate, you clearly have a lot of experience at high level RGB, and a very impressive rating on a H-Priest, maybe i was wrong, my apologies, lets move on".
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This is how i read it - the player said they were a very experienced and one of the best Hpriests in RGB, and part of a highly competitive pvp guild. They then went on to prove exactly that. Maybe i missed a post somewhere, but i dont see them calling themselves the best player at all.