Very interesting points, i have a (noob) question about point n.2. Could the question about GDPR can be circumvented by having a anonymous profile ? Could this be applied to other platforms?

Very good example , they create/do/make something nice and find a way to ruin it showing (again) what is their end goal is : lock the cow in their garden to keep on milking it to death

Nothing good will come from meta, ever. They will alway look for a way to corrupt any social media to their favor in order try to dominate the Web. At this point of the internet history anyone giving a speck of trust to them is dream walking into a disaster waiting to happen.

Is it possible to defederate them as a preventive measure?

I have 3.5