What all these companies (Facebook, Twitter, Amazon, Visa etc...) did was textbook market coordination [1]. Nothing illegal or crazy about it, it happens all the time on different levels.
What people should be griping about is that they put so much faith and trust into private organizations that are not the commons or public services and have no obligation to anyone beyond the contract that they enter into (ToS etc...).
What people should be griping about is that they put so much faith and trust into private organizations that are not the commons or public services and have no obligation to anyone beyond the contract that they enter into (ToS etc...).
[1] https://www.economicsdiscussion.net/economics-2/market-coord...