Presently, it may well seem to users who are not yet familiar with MathOverflow that flooding the site with questions is desirable and encouraged behavior -- at least this is what the point system appears to suggest:

• an upvote on a question adds more than twice as many points as a downvote takes away, which can make even questions with negative score yield points,

• one can get an unlimited number of points for questions, also if one doesn't answer any question of someone else, and

• neither questions being closed as off-topic nor posts deleted for reasons of moderation nor flags "cost" any points (except for spam flags, but these are not applicable).

Do people see a problem here which should be addressed in some way?

Added later: Some related data from the StackExchange Data Explorer.