drak_ool said:
haha someone here is even more paranoid than me! I think you do have a point, but then again I m a big believer in conspiracy theories...
It's actually a lot simpler. He posted from a friend's work computer, to give a pretense of being impossible to trace, whereas the plan was for him to be called on inappropriate use of company resources. That way, the friend would get pissed, go through the browsing history, find the thread, read what was posted, and complain to his mother (because if he's pissed he wouldn't want to talk to him directly).
His mother would get worried about how the relationship of those two was going, somewhat inquire, and filter out that he was worried about the girlfriend thinking he cheated, but without directly confronting her. this has the added benefit of coming from an authoritative source (the mother of the friend), while not making him admit or deny everything, thus keeping the upper hand in the relationship.
Quite clever, really. And he would have gotten away with it if it wasn't for those meddling forumgoers!