I am already starting to have trouble coming up with good questions for the site. At least in chat I have seen other users have a similar sentiment as well. Sure there are time constraints in people's lives but it is not up to a small number of individuals to keep the site alive. Also I am sure the site is going to lose momentum at some point.
Therefore I think It would be good to have a list of sources of inspiration and concepts that people can refer to if they want to contribute good questions but lack the ideas or experience they need to form them in order to maintain a healthy stream of questions.