I dont know if anyone here watched Shadow's irl fishing streams, didnt Shadow talked about the face reveal thing ? Im sure he was sitting on a bench, about to go buy baits, and he talked about how he and Giri were deciding about face reveal be a sub goal or patreon thing.
Im not sure how much the mask is for reasons of privacy or being nervous, i think they wanted to monetize, but Giri accidentally showed face so many times that they just dont know how to ask money for it anymore.