This brings up another question: If enough node operators and miners use prebuilt OSes where they don't verify the signatures of the bitcoin core software included, could it be possible for the developers of those OSes to inject code and then steer Bitcoin in a different direction? I guess this would be a sort of 51% attack. Although I guess depending on the code injected, it would create a discrepancy between some operators and others which would eventually raise enough eyebrows to cause further investigation into the matter.