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?
Well... I for one appreciate Kano watching out for the pool in order to make sure the members get all the shares they deserve. Few other pool administrators do that, fewer still have any idea HOW to do that.
Kano really REALLY doesn't like repeating himself. He did state in his original response that you were the only one running the unknown firmware.
From observation: I can state that all current S9s, T9s, etc. from Bitmain and all Avalon 821 & 841s (and I suspect earlier versions but those were before my time here) are supported since they behave as expected.
Given the problems Slushpool recently had, and that they are one of the ASICboost pools, I'm left wondering if there is a coorelation? Therefore VERY happy that Kano is as protective as he is. Am sorry that it affected you personally.