I havent seen a post like this (i havent searched for one either though).

It should be a hand that you feel you played exceptionally well. Either a good bluff, a nice laydown, a nice calldown, a value bet, whatever.
It should not be "i flopped quads, sweet", unless you also played them well and got payed by a far inferior hand.
Your hand should be complete with commentary, reads, etc. the point is to allow others to learn from your best plays of the day.

Thank you