I posted an answer which wasn't well received and it got deleted. You can see the question here.
The help center states some reasons for an answer deletion:
commentary on the question or other answers... not my case asking another, different question... not my case “thanks!” or “me too!” responses... not my case exact duplicates of other answers... not my case barely more than a link to an external site... not my case not even a partial answer to the actual question... not my case
It might not have been the best answer (and I was actually trying to find out why, as you can see in the comments, however this completely prevents me from doing so), but according to the information I could find I don't think it qualified for deletion!
The more serious issue is that the question was deleted after I edited it, as the comment suggested, making it a valid answer to the question as it stood at the moment of deletion, the negative votes had even started to reverse, from -4 to -2.
What are your thoughts on this issue?
----- Edit -----
I found a seemingly valid use case for changing a block device's ownership (see here). This doesn't mean my suggestion was right, just that things aren't always absolute and obvious to everybody and that a brief explanation or a link would be more constructive than voting to delete a question.