Everything is mob rule, or fear-of-mob-rule rule. Most companies have principles on how they do business, and they adjust those principles based on how people (internally and externally) react to them. That's why Google shut down its search engine for the CCP - it's mob rule at Google, and if you decide to do something that enough people find unethical, you won't hear the end of it until you stop. Why do you think this is a bad thing, or that it's somehow not the way the world works?

Who decides what's a minority?

I understand your point and largely agree with the idea that corporations shouldn't become de-facto governments with regard to morality/free-speech/etc. However I think it's important to acknowledge that there's a really difficult problem to solve here with regards to spam, astroturfing and harassment/trolling (if not more areas) where allowing everything that is technically legal would make most online spaces unbearable to participate in for the vast majority of people (e.g. 4chan and its ilk). And the line between moderating those things and censorship is incredibly blurry