While I agree with you, I just want to mention that not necessarily all fediverse users have a formed opinion (at least at first) about open platforms, sharing content with other websites, and so on.

Some people just suffered from platforms like ex-Twitter, Facebook, Instagram, Tumblr, etc. enshittifying, heard that other victims were trying to build something better, and (generously, might I add) decided to give it a chance.

That doesn't excuse any horrible behavior they might've engaged in. But remember that just because someone is surprised and reacts negatively at how their content is handled on the fediverse, that doesn't mean they were in the wrong to join.

Folks can jump into things without fully understanding them, and sometimes it's nice to, circumstances allowing, take that as an opportunity to inform, rather than question "Why are you even here?"