Often enough, by the time I get a reasonable answer to a question, I've already worked around it or upgraded software far past the problem (e.g. I don't even own this camera anymore.) That puts me in the position of not being able to test out answers to give a checkmark. Is there a way to contact question upvoters and transfer ownership to someone still interested in the problem? If there isn't is there a way for me to recommend it as a feature?
If you no longer have a vested interest in the question and it hasn't been reasonably answered (or you can no longer provide requested details). Just flag it to be closed at too localized. If someone comes along with a similar issue they'll be able to start their own question about it and follow up with it.