Yes, messing with someone's work and that too a big work will be a very big smash for his/her career. Right said, it is a prank and there are several rights and authorities to claim back the data even tough it is deleted through which the accused can easily win. No wonder why the guy's saying my lawyer many times in his reply.
Lol, too bad that it's probably a joke. However, there are a lot of stupid people out there. [video=youtube;_c6HsiixFS8]http://www.youtube.com/watch?v=_c6HsiixFS8[/video]
I bet its the same person that believes that little elves magically make images out of thin air and put them on websites with a magic spell. It's sad that there immediate solution is to sue the person.