Well, Mr Mithmess, "hypothetically" speaking of course, my preferred method would be to publicly butt fist them with razor wire while choking them with a wart hog's bollocks, but as that unfortunately doesn't translate well into the cyber world for obvious physical, practical reasons, I would offer the following advice:
If you know the identity of the sneak responsible, open your heart to the world and sing like a canary. You'll feel much better for getting it all off your chest my lad. And think of the service you'll be doing for the community at large - metaphorically speaking, you'd be the guy who takes the terd out of the pool so everyone can swim again.
Hope this helps