The number of questions/week is now at an all-time low. It's currently at 0.2 questions/day. This means that we only got 3 new questions in the last 2 weeks, despite the fact that the number of users is still (slowly) increasing.
I know there are other posts here on meta about site-promotion but those focus on getting more users. I agree that getting more users is important, but how do we get users to ask (more) questions?
EDIT: A comparison with other beta sites also shows that MA has a relatively small amount of questions
Martial arts 509 days in beta 1148 users 397 questions
Sports 501 days in beta 1370 users 788 questions
Sustainability 145 days in beta 620 users 351 questions
Tridion 124 days in beta 1151 users 602 questions