After spending time on writing an answer to a question and having the decency to edit my post to answer a follow-up question that was asked in the comments, I now see that the the author has deleted her question. I am sure that my answer was correct or at least helpful, so this seems to my like a hit-and-run situation: get the answer, and remove all evidence that the question was asked in the first place (link to old question: http://stackoverflow.com/questions/11949738/c-and-writing-into-windows-registry/11950068#11950068).
Removing a question also means that similar questions will be asked in the future, meaning that more time will be spent by people writing the answers and people waiting for questions to get answered. My question to you is what you think about this situation. Should it be so easy to remove questions? Isn't disowning a better idea?