Interesting question you raise.
- The bounty benefactor is a well-known troublemaker and will (in all likelihood) award the bounty to either a low-rated or controversial
answer that is biased or patently false. Once the name of the bounty
benefactor disappears, the bounty will seem to have been offered by
the OP themself and will appear to conflict with either the accepted
answer or the most upvoted one.
This sounds like something that can be addressed (potentially after the fact) by using a custom flags to escalate this to mods. If there is any evidence of malicious behaviour by the person offering the bounty they will notice the consequences of that.
- The benefactor has openly expressed political views which are in sharp contrast with the OP's.
It's the internet, we all have views. But we should learn to tolerate others. whether or not I like pineapple on my pizza shouldn't be of any influence towards the bounties I wish to offer. If someone else can't be tolerant of the fact I like pineapple on my pizza and chose to offer a bounty on their question, well their in for some tough luck, as that is just how the system works.
- The OP is perfectly happy with the answers received and feels the bounty is pointless.
That could very well be, but then you are not grasping the intention of the network. It is not so much about the needs of OP as about the desire to create a repository of high quality questions and answers. If someone feels there are better answers then are currently given, one is free to offer a bounty on that question.
- The OP is now deeply embarrassed by their on-topic question (for whatever reason) and prefers that question to quietly "disappear" from
That is what happens when you share things on the internet, they tend to stay around forever. If one is truly embarrassed by a post, they can request post disassociation.
- This is the third or fourth bounty offered by the same user. Enough is enough!
That depends, maybe the user just has a habit of handing out bounties on a specific niche tag, where you have happened to post a lot of questions. Otherwise if you feel like another user is singling you out, have a chat with the moderators.
So as to conclude, I don't see any single good reason to disallow the placing of bounties. In the exceptional cases where it turns into problems we have our exception handlers, who are perfectly equipped to deal with these kind of situations.