A good moderator would never leave. If he leaves chances are we're also stuck with spam again. 'Tis the way life works (on the internet).
Let's just all agree that having the old TH sucks thread along with the ADOM links and the server thread stickied then?
Modify his post? Who on Earth would do such a thing?!
I do see your points, though. I'd also say spam removal would suffice, but having the above mentioned threads stickied would reduce the need for newbies at the forum to ask things that have already been thoroughly covered elsewhere. A positive side-effect of this would be that Soirana wouldn't have to lose his temper over thread-spamming.
Suddenly a stream of acid pours down from the ceiling! The cute dog is horribly mutilated by the acidic fluids! The cute dog dies!