what happens to the bounty
Bounty amount goes
Does the only answer get the bounty despite it not being accepted assuming the answer is right
No.
But then what if the user does not log in within that period to check the answer??
Refer fossfreedom's answer.
And plus what if the bounty has been offered by someone who edited the post and not by the actual user who questioned
Doesn't matter, it's the same.
I am talking about this one-askubuntu.com/questions/134577