As if I needed another reason to not like Ashton Kutcher (besides the fact that he wasted 2 hours of my life with The Butterfly Effect):
Basically he is going to to do what thousands of assholes do everyday on the internet. It's called trolling. Although it may make for some interesting transcripts:
Kaballer: Shut up your nothing but a bi0tch fanboy!!!1!@
Diane7125: Uh... I was just asking if anyone saw the Oscars.....
Kaballer: And you are nothing but a p0ser! What do you think of that?! Biatch1!
Diane7125: Wait OMG... is this Ashton??! Am I getting punk'd??
Kaballer: No, stfu n00b!
Diane7125: AWESOME, I am getting punk'd!! HI ASHTON! I <3 YOU!!!
I mean, part of the reason Punk'd is at all watchable is because he fucks with celebrities. Who cares if anonymous screen names are baited into flame wars? This happens every 30 seconds on any given chatroom or message board. The people who are really being duped are people like you and me who have to live with the fact that Ashton will get more money doing this in one day than we will see in a year.