While I'm all for leaving cross-version issues open, I'm not happy that your examples meet that criterion and in my mind both should remain closed. To explain, I'll pick this up from your comment:
Can either of you say for sure that upgrading will solve either problem?
Not at all, but the burden of proof isn't on us. The user should be testing their hardware on a supported version of Ubuntu. It's free and 99% of times can be tested from a Live environment in 10 minutes or less. It either works and they have a solution; or it doesn't and with an edit or two, they have an on-topic question.
People are free to run whatever version of Ubuntu they like but they can only expect support on the latest, supported versions. This is as much for our benefit as it is theirs. None of us should want crusty vulnerable old software connected on the internet.