Depends. I've gotten comments/answers that were pointless and rude, those are annoying. If its someone trying to help/really answering the question then those are always nice but usually old and irrelevant in the present time.
I am happy that people still answer my questions. Even more happy that some people are using the "Search" thing on this site too. At least some people are not gonna be asking the same questions over and over.
Don't mind, depends on the question. Sometimes the person is asking for an opinion on an upcoming event and by the time that person answers the event is well long gone! But even though the answer might not be useful to the QA it may be useful to another person in the same situation! So, swings in roundabouts really!