I'd like to advocate for the idea of essentially 3 bands per 24 hours (one day), with the idea that many users and readers will mostly engage over such a period, and never more than two bands (16 hours).

In other words, after an 8-hour-ish period has passed, its not a dupe. It's a repost.

Living in a time zone significantly different to most GAW frogs, I often find that by the time I come on, a lot of action has taken place and been washed under the bridge. Sometimes it feels like you are always playing catch up. Recognition of different 'time bands' in a world where the whole planet cycles every 24 hours could have some benefits. imo.

Duping in close proximity (i.e. between 0 to 6/7 hours) does not add to the board, clutters it up. 'Duping' after this period has a good chance of bringing to attention frogs who have not been on for up to 16 hours...

I think a similar idea could be used for stickies. To my surprise, I noticed that some posts are stickied for a few hours, and then (it seems, when a particular mod comes on) they are all flushed. But other posts are stickied for 16-24 hours.

Of course, it depends on the value of the content, but I think its contradictory to sticky posts and then simply flush them a few hours later because some mod comes on and figures: "I'll flush all the stickies (regardless of how long the board has been able to view them)"

That's just a hypothesis of mine, based on observations, so possibly its not the case and something else is at play. But fwiw, those are my thoughts.