Not sure if this is possible but asking just in case.
On a couple of different types of occasions, most typically on Deals+Giveaway thread when the deal has ended, some later post-fact “good deal!” Come in which don’t apply any longer.
There are also a type of spammer who Threadnomancer reply to old threads to then insert spam.
So I was wondering, if possible, and if anyone else cares to think useful, for thread owner to be granted power to close their own thread?