I must say, I quite like the idea, as long as the window is short (say 5 mins), and perhaps the grace period ends as soon as a response is posted (within the window period). So any comment younger than 5 mins, with no responses, is eligible.
Edit: maybe the grace period also ends as soon as there is an up/down vote.
I'll accept whatever consensus decides. It's a personal quirk, and not critical.
I must say, I quite like the idea, as long as the window is short (say 5 mins), and perhaps the grace period ends as soon as a response is posted (within the window period). So any comment younger than 5 mins, with no responses, is eligible.
Edit: maybe the grace period also ends as soon as there is an up/down vote.