So I just got off tech support with Airbnb. Apparently this new host discount thing is a new 'feature'. Once you opt into it, the algorithms take over the amount of the discount and the number of people it's offered to. They tell me there is no way to opt out once you opt in. There is also no way to see what the discounts or number of people it's offered to are. Yikes! I asked for more opportunity for hosts to control the settings on this (because I like the feature) but I feel like I'm in the dark, and I'm sorry I clicked yes to it. The rep said they'd pass the feedback on to the development team, for what that might be worth to those of us in this pickle right now. Good luck...