I agree with your sentiment about the pros/cons of developers having product mindset. I don't know that this a HN-specific thing, but I think roles very easily

I agree with your sentiment about the pros/cons of developers having product mindset. I don't know that this a HN-specific thing, but I think roles very easily become tribes, and everyone thinks their tribe is superior. E.g. I know architects who think product and engineers serve architecture, I know engineers who think they know better than product and give the "yeah-yeah" to architects, I know product managers who hate architecture and engineers because they don't see the progress they want. I often see this as a struggle for power, normally in situations where there isn't good psychological safety/team focus/communication, which leads to a scramble for authority.