To take a stab at my perception of why this is: Its the same reason why everyone and their mother has an opinion on note taking; programming language design is a topic that has a comparatively low skill floor to have an opinion on. Its difficult to have an opinion on how, I don't even know, drivers should communicate with each other in the linux kernel, see I can't even come up with a great example of the kinds of discussions they have because the skill floor is reasonably high. Its more common to hear "We gotta bring Rust to linux"; even more common still is "Rust is too complicated" "too verbose" "we should change X Y Z" whatever.