I answered a question that as far as I can tell was never previously asked and the answer involved pointing the poster to a particular R package and I illustrated its use. He left a comment thanking me (but no checkmark or upvote , but who cares?). The poster had one rep point and may have been unaware that valid answers stay up (or this may have been a homework question?) Anyway, I reposted a somewhat shorter version and reposted my answer as well.
This seems sufficient for the current case, but what if it were more complicated question and answer. Is there are recovery mechanism for good answers attached to deleted questions, or are answers at the complete mercy of the OP? (I have searched Meta and not found an answer yet.)
Feature suggestion: Should low rep users be prevented from deleting posts with answers?