Just pretend that by pressing "esc" on your keyboard, imtim83 would have a heart attack and die. There is no way this could be traced to you, and there's no way you'd suffer any legal consequences for it. You would, however, know that you caused the death of a living creature (no matter how messed up it was in the first place). And, of course, he'd never post here again.
Would you do it?
Would you do it?