What's that have to do with the price of tea in China?
Absolutely nothing.
Also absolutely wrong.
My last two accounts, this one and Level 31 HQ have both been copied till ad nauseum, it's in fact rather annoying how much other people apparently do want to be like me.
He's clearly used it ingame at least twice:
http://pl.twstats.com/pl56/index.php?page=player&id=965386
pl13, pl56, those can't possibly be anyone but him, you can't make a forum account without already owning the ingame account of the same name. As such that account can't be anyone but him.
If he's played it twice, who's to say he hasn't also played it on other servers?
No one. Or at least no one who is going to be taken seriously. Your claims have about as much backing to them as someone saying, "I played with Nauzhror once, as such I know he'd never play on .pl as Nauzhror."
They'd know no such thing, much the same as you know no such thing and are just desperately attempting to not believe your friend isn't actually the best ever.