I agree with ultra and that game will be hella more chaotic if actions are just processed over it being announced. I think hosts that venture into SRM game territory tend to think bigger is better and bloat their game with abilities which sometimes lead to hosts not being able to keep up with their own game or their busy in irl and when return it's a rush to try to keep up with the demand of the players.
I don't consider these games simulations they are more like spectacles. Players for some reason tend to shut off their brain in these types of games, it's only in SRM games where people would rather wait for actions than to actively scum hunt. For a forum based on one piece I would expect peeps to not focus too much on your devil fruit/role abilities and invest in your haki instead.