I keep coming across ancient questions that are now completely irrelevant - for example What do these error messages mean and how to fix it?.
My first thought was "Use a newer release of Ubuntu?!" followed shortly by "Oh, this was asked in 2010..."
I've had a look, and there doesn't appear to be another suggestion, so I'd like to suggest that we add a type of "close" flag - "this question is out of date and wouldn't benefit from an answer".
I'm sure I've seen something like this somewhere, but can't immediately find it, and it's not an option now.