I've posted a bounty on a question, and someone's posted a good answer in response. Is it socially acceptable to wait until the grace period starts, to see if someone posts an even better answer?
Yes. Or at least, it had better be, since this is what I always do.
The bounty should be awarded to the most deserving eligible answer, right? How will you know which one that is if you don't wait until the grace period starts?