I think that question seeding and trying to get more publicity are the best answers for this. If there are not enough questions per day, it is either a result of people not thinking they will find an answer here or of not enough people knowing about this site.
Seed questions, ask good questions that will cause people to stumble across this site as they do their own searches. Also, building up a better bank of answered questions will simply be useful for users and visitors.
On the publicity side, sharing links to TGO on personal websites, blogs, and social media might be a great way to garner more attention.
If we want TGO to survive, we need to make it a fantastic resource, then convince everyone else that it is a fantastic resource.