Ales-
It's not just you this idiot has been PMing. In the past couple days, 3 of my alts have gotten the exact PM from that turdburgler.
All I can say to you is, it's the interwebz... It's going to happen any time a little boy hiding behind a monitor

sees a female character online.
The best you can hope for in a case like this, is that enough ppl report the same account, and Glitch feels the need to take action.
EDIT: No one here knows all my alts, so I
highly doubt it is a known forum member goofing off.