I noticed here that a fresh bounty has been started without a notice, and suspected I know how it was done.
It was easy enough to reproduce on one of my questions:
No reason is displayed, and even worse, the revisions list is showing a moderator only notice, "Content dispute":
Can this please be fixed so that bounty reason must be given and validated server side?
(Using the hacked tag since adding that moderator only notice is kind of a hack)