I'll grant the other side something real: keeping old formats and OS versions alive does cost engineering time. But that's rarely nostalgia driving it, it's contracts, security, and lots of users who can't switch overnight. The developer QA stat shows a support burden, not a culture war against the new. And backward compatibility usually lowers upgrade risk, which gets people onto new platforms faster. If we want more innovation, blame products with no clear gain and firms that milk compatibility instead of improving it, not users who like what worked. Nostalgia is a signal about what matters, not the main brake.