Occasionally, I'll see moderator flags because something is off-topic (suitable for migration from SO to SU / SF, but this MSO question would apply in any direction), but somebody has added a bounty.
Problem: once a bounty exists, it is not possible for users to vote for close/migrate/etc, even if it would do better on another site.
So far, I think the tactic has been (slightly reluctantly) to leave it alone, perhaps adding a comment.
TBH; I don't know what would happen if I tried to forcibly close/delete/migrate them - none of the bounty questions have been too bad that it has to go. Other than "spot the off-topic posts more quickly", any suggestions on policy here?