don't delete it.
that's just as bad.
Just letting it die off on its own is better. That way it will still pull up if someone does a search. Well, at least until they clear all of the old threads to make more room. Helps to keep repeat threads to a minimum. Its annoying having someone create a new user-name just to post the exact same question that was discussed and answered three days ago. Takes up space on the servers that could have been used elsewhere, ya know.
Didn't mean to bite your head off or anything. I'm just an abrasive ass. But to my credit, I'm the exact same way in person.