Need a feature or countermeasure in place for users who promote “bad behavior”?
The inability to earn reputation for flagging unwelcome questions causes some perverse incentives:
One isn't very incentivised to flag (correctly), which makes the site somewhat slow to respond to unwelcome questions - this point is quite well addressed in Why there isn't reputation points for successful flagging? (badges, for example, go some way toward alleviating this);
More seriously (in my view), one is incentivised to try and answer unwelcome questions, thereby encouraging them to proliferate.
If it remains undesirable to reward correct flagging with reputation points, perhaps any reputation that is earned on questions that later get closed should then be annulled? This would incentivise users not to waste time on questions they perceive may become closed and, consequently, would encourage more of them to flag the question as such instead.
One could take it a step further and negatively punish users for responding to such questions, but I think that a little draconian.