I always wondered if the promotions were handled with restaurants more like "we (the platform) recoup our promo losses via the regular platform fee you (the restaurant) pay regardless" or more like "if a customer uses a promotion, we (platform and restaurant) split the loss, unrelated to the regular platform fee". Like when I use a platform promo for reasons well beyond trying a new place for the first time, am I screwing the restaurant, the platform, or some combination?