Being cocky about tank skill in AH is like a laundry boy for the Cowboys being cocky about being in the NFL. Sure you can bury your face in the smelly jocks all you want but you'll never make it onto the field for the game.
I'm cocky in real life because I'm good looking and successful, so why wouldn't I be cocky in a game? Unless you live within my area code don't try to talk a big game when all you are is a cartoon pilot. I may not make friends online all the time but who cares, I'll never meet any of you. Your opinion of me matters zilch, hey wheres my squelch command?
Play the game and keep your comments to yourself its really very easy.