Should there be a better, more noticeable visual indication that a question is old?
I know that the question will have the post date on it, but many many users either don't notice the post date or don't realize the implications of an old post.
Older questions constantly generate flags by users who apparently don't realize their age, or are used in "but this question isn't closed, so why is miiiiiine???" whines.
In addition to these issues, it is nice to notify internet searchers that a particular solution is dated. In our business, a solution proposed a year or more ago could easily have been superseded with a better one. Again, some kind of visual hint that suggests to the reader that they need to consider the age of the post would be welcome.
Perhaps older questions should be visually "aged", similar to how posts with low vote scores are faded out and interesting questions have a different background?
What other ways can users be given a visual clue that a question is old?
Mockupthat is not mostly serious: