the kinds of questions you ask are the kinds of questions i avoid like the plague. I hate answering relationship questions. Just too boring, and when you try to lighten the mood with a joke... the question asker usually gets mad so i just dont bother
It will depend on the question, on how interesting it is and how easy it is for the person to answer. It will also depend on the title of the question, as that will be what draws people in to take a look in the first place.
Things like adding a little poll can sometimes help get you some feedback, as some users will answer a poll question but not actually write a response. It's a quick and easy way to give an opinion to something that has very distinct answers.
because your questions are so deep that they have to contemplate them for years before they can come up with a satifying answer. Dont worry, in about 5 years you will see answers to all of your questions!