Sorry...but I have to agree with Galdron...like I said in my previous post there's no defined enemy, no threats, etc...which are the first things people post when they are having this kind of problem...
in this case there seems to be no culprit...just some mysterious covert operation by some unknown source...
this is a little too elaborate to be a prank...

either it's a joke or he/she has serious disorder problems.

Eg