A market asking how many times an account posts 'today' has to define today, and the definition is frequently ET while the account's activity clusters in another time zone — which moves a meaningful share of posts across the boundary. Deleted posts, edited posts and scheduled posts each have their own treatment in the rules. You read the boundary definition, count against it exactly, and trade the markets whose price reflects a different day than the contract does.
Markets on Polymarket where window-boundary & time-zone rules on counts is the natural play:
