Why should we do anything about it? Is the question actively harmful?
But to address your specific concerns:
But a question asked so long ago as 2012-06-29 is probably a) useless to the OP,
Why should the usefulness to the OP matter? If we judged on that, we'd have to delete all questions once the OP got their answer. Granted, the OP is to have likely not going to need a solution after this time, but what about someone else?
b) unlikely to be answered now
One way we frequent suggest new users get rep is to find old unanswered questions and try to find the solution. This is a good question for them to try to solve. And there are also badges (Revival and Necromancer) for being the first to answer an old question.
There are still useful questions from 2008, so why is one that is barely a year old going to not be useful? Also, 6 people upvoted it (so they must have thought it a good question) and according to the timeline, all of the upvotes have occurred in the last 5 months, so I'd think it was still relevant.