Something I just thought of that really bothers me about Answers is the fact that there are so many tags that are only used once... looking down the list of tags, there are 15+ "hard drive" tags that are only used once that could be nicely consolidated. Tags (and devices, for that matter) should be more strictly enforced so that the number of new tags being added is greatly reduced.
Tagging is one really great way to help users find what they're looking for before they eventually ask a question - to have devices better tagged means that our information is better cataloged.