Maybe as questions are answered they should be moved down a priority list or when best answer is awarded moved to an archive. I know some might say moving questions prevents people from sourcing any info that might help them but do people really look up questions similar to their own before posting.
Most Helpful Guy
It largely depends on the kind of questions you ask. Most of my questions get 10 answers at minimum, but that's because the questions I ask are rarely about me, and are about topics that everyone can voice their opinion on. Plus, I try to make them somewhat interesting so people feel like its worth their time to answer. The reason why I only post in the "other" section is because most days, I really can't be bothered to look over paragraphs of peoples boyfriend/girlfriend problems. Soo much is going on in the world today (its more than exciting sometimes) and I just feel like those kind of questions completely ignore a world of much more important things. So, if someone posted questions looking for advice on something in their life, try to phrase it in a way that is inviting to everyone to answer, and not just to people interested in reading your personal story. If you ask broader kinds of questions out of curiosity to see people's responses, well, I would try to find stories that beckon an emotional response.
Last bit of advice to people. Don't disable the anonymous button. Sometimes it does make sense to do so (like political discussions), but you'll get more people responding to the questions you post if you leave that option for people. Yeah, sometimes the anon answers suck, but not always.