As for downvotes, I reserve that for obvious trolling and overly snarky comments that just seem to be aimed at stirring the pot. I have noticed that some genuinely funny comments or puns based on the discussion get downvoted, which I disagree with. It may not add to the intellectual value, but I enjoy a good laugh as much as I enjoy learning.
I would agree with some of the sentiments here that the person probably deleted their question out of fear that they would "look dumb". I think experience has taught me that while Im not the smartest person out there, when something doesnt make sense to me, there is usually someone else that doesnt get it either. Ive also learned that people that react poorly to "stupid questions" are probably feeling defensive of their own knowledge/incompetence.
Anyway, I agree Colin, there is basic courtesy that if you are asking for help, it should be acknowledged and thanked when its provided. Nobody knows everything, and asking for help isnt a bad thing. So OWN your questions folks!!!