It happened to me also. My pop-question "Can house-elves use wands" also got deleted from the site.
There is a link 'report' for every stuff (image, video, pick, ক্যুইজ etc.) on this site. If other অনুরাগী find your posts offending, inappropiate, wrong অথবা factually-incorrect, then they can প্রতিবেদন it to administrators (maybe) and the review it and take descion. Maybe other অনুরাগী have reported it to them and they have deleted it.
Unfortunately, there is no way আপনি can get it back (If there is, I don't know). :(
