[gitgud]

Yes, but answering a unanswered 5 year old question still brings benefits to the community, I just don't think it warrents deletion, as it won't be ranked highly unless you specifically search for it.

Another reason to preserve the question is for context. Many of my problems have been solved by discovering that someone else had the same error message, but they had different circumstances which leads to clues and possibly discover the root cause, this then could allows you to answer the ancient question (even if it's no longer relavent to the asker).

There's nothing worse than googling an error and having zero results show up...