I don't think most people come across a 500 comment issue and need to start in the middle. a.) The threshold for reducing clutter is well less than 500, and

I don't think most people come across a 500 comment issue and need to start in the middle. a.) The threshold for reducing clutter is well less than 500, and comments disappear for a variety of reasons besides. If Github deems a comment irrelevant they'll try to collapse it. b.) Yes, I often want to start in the middle. If I'm searching for a specific error message or class some of the search results include issues where that keyword was only mentioned in a hidden comment.