Or you could just store the date of the last child comment with the user information, and include that on the top bar (near the average)? So a user knows the la

Or you could just store the date of the last child comment with the user information, and include that on the top bar (near the average)? So a user knows the last datetime of child comments in their threads. Personally, I like the average. Shows that HN is more 'adaptive', imho. ETA. Whoa that was fast. I like the (abs., avg.), fwiw. That does seem best.