I flagged a question earlier this evening by user3551983 for undoing edits to math formatting, as well as two other poorly formatted posts. The user then deleted all three of his threads. I saw an identical question (not the one I flagged, but one of user3551983's questions) pop up by user259278, still unformatted. So I formatted it and answered the question. The OP (user259278) then deleted the question. I'm pretty sure this is a duplicate account.
My concerns are two-fold. First, since I took the time to answer the question, I feel my efforts were wasted since the thread is gone and can't be used as a resource. Second, it seems a tad unethical to me to register multiple accounts to ask the same question, but not to adhere to the rules of the site (i.e., math formatting so we can read the question) to get better help. The second is definitely more a moderative issue, but I was wondering if there was a way to get the post in question undeleted. Unfortunately, I don't have any such link to provide.