How can we close questions with bounties?
This open-ended shopping question doesn't belong on SO, but I can't close it. This is because it has an open bounty. Can a bounty really act as invincibility shield for questions that should be closed? This seems not ideal.
Is there anything I can do aside from waiting out the bounty?
(Also, the genesis of my wanting to close it is because crappy off-topic answers are polluting the new answers to old questions queue)