No, I unfortunately don't have an option to delete the thread myself. I thought the "submit a question" thing popped up something indicating it posted. It didn't do anything, so I clicked it a few times. My bad!
Hmm. Weird. Well I guess they'll get deleted or at least buried, except this one if we keep posting on it Btw the record I've seen is 10 duplicates, so you didn't break that Also when something you click/do don't seem to happen, just update the page. Works for me all the time.