Thanks for asking this btw. Just found it with a quick search wondering the same thing after reading yet another comment section (this one about Trump, Musk and JD Vance) that turned into 50% whinging about .world mods/admin and horrible reddit users turning their lemmy into a shithole. The answers you got here were really helpful for me to understand a bit more about the context/history of these spaces.
Aliens did nothing we know of to deserve even more of our trash. Volcanoes on the other hand have angry gods that must be appeased every so often. Just spitballing.