I don't think changing the device MAC idea is a good one either, I just don't want my online identity permanently tied to my meatspace identity because I might

I don't think changing the device MAC idea is a good one either, I just don't want my online identity permanently tied to my meatspace identity because I might say things that a future government takes issue with, and if I am tied by government control to my online identity and rules change, my meatspace life gets fucked forever.