We can literally track a user's use of reactions by their activity, and by relying on mutual expectation that everyone reports out of thread communication (if we deem it as such) So regardless I think saying it's impossible to police reacts if we so wanted to is silly, it's much easier than policing any other sort of ootc Of course practically speaking no host is going to go over everyone's profile each day but having an open record makes it enforceable, seems silly to suggest otherwise