Saw this hive bounty stuff yesterday and I was quite surprised...
It seems like a great idea and a lovely way to increase engagements...

It would be nice though if the bounty could be set and only the post author and the setter of the bounty would know it was set though...
Then when the bounty has been paid out, the bounty set would be public for everyone to see...
I think that would avoid people commenting on posts that just have a bounty...