"Hi! Wanna do something?"
"Hi wna do sumthing?"
"H wna d som?
I swear, if people start talking like that online, I will ignore them.
For the lack of a better example, here's the best I got atm (er... at the moment):
In the MMO Runescape (which has cropped up as a topic on the board before), every now and then, some *noob* tries to ask for trades or borrowing items by saying things like (in one instance) "Barrowing wip" (translation: Borrowing whip). Needless to say, I did not lend him my whip.
And of course, to me, the most
annoying acronym is "pl0x". I don't even listen to people who use it...