Just leave thoose platforms (Facebook, Twitter, etc...). Really... If no users, no ads, no money then the platform disappear... And voilà! If a trusted and trustfull post from Adafruit is not allowed to be public, imagine what can be "censored" too.
Saying "just leave" leads to a problem similar to the prisoner's dilemma: if everyone left Facebook, everyone would be better off for it, but if just you leave Facebook and everyone else stays on, you're way worse off.
Really interesting toughts, thanks for sharing. You're right, around me anybody has left Facebook except me. Do I feel worse about that, not at all.