Up until yesterday, I thought the restrictions applied only to rented hash and AsicBoost (with work in progress to add support for the last). Looking at the way things went today, Ebit E10 are also not allowed. What's next? We have Canaan (unfortunately Avalons are still a bit pricey in my region, even today), and Bitmain (noone likes them, but everybody uses their Antminers). Are these the only supported / allowed vendors?