C.O.
This drives me nuts. I asked this question just last month after a "rash" of people deleting to a dot/period. Seriously?! The one who has a history of doing it may not get many replies if people look at her questions asked and see that she deletes all of her questions. Why not just "report" it and ask Mamapedia to delete it? I don't know if they will or not - but really.
http://www.mamapedia.com/questions/16668849536625737729
And only a few said "what's it to you?" but overall - it seems like it disappoints many people.
I think some people don't want their questions to be "tied" or "traced" to them - but really? Like AV said - if you feel badly about it in the first place - don't post it.