It's not at all like e-mail spam. Vast majority of contributors made a change useful for themselves that they wish to share with others. It's better to think of this as an influx of new programmers or existing programmers picking up new domains. They can be taught to use coding agents better and are likely to stick with projects that facilitate this rather than shutting them out. Maybe it's best for everyone. Let Linux kernel be super locked down to l33t contributors only and let alternative OSes that nobody paid attention to before gain new developers.