well yea let's hope there's no e-police around, this is exactly the kind of thing they look for, even on alias' accounts.
but yea if by some off chance you're actually stupid enough to consider stabbing someone, and then are somehow even stupider yet to put a record of you talking about stabbing someone on the internet, you need to know something
you're an idiot
if one kid calling you a "fag" is enough to get you ready to stab him, you're not really going places
so uh yea, don't do it.