When a post gets bumped to the top of active tab due to a new bounty, the "modified" timestamp should link to the bounty message.
Background: New Community Review badges post was bumped to the top in active tab and it took a bit of research to find out what actually caused this bump. I was expecting that clicking on the modified link would show me what got updated. There were no new answers and no edits to question or existing answers. I checked the timeline, didn't help. Since the edit timestamp of the question was not recent so checking revisions didn't cross my mind. By chance I saw the date on the bounty message and figured that adding bounty bumped the post.
So, I believe that clicking on "modified" link should somehow show the bounty message or bring it into the viewable area.