[mkeyhani]

Because Facebook, unlike say a subreddit, is not a a community formed around a certain topic. There is no 'we' in particular.

[etchalon]

Isn’t the “we” whoever developed and hosts the service?

The idea that you can only limit a community if it’s dedicated to a specific topic is non-sensical.

[mkeyhani]

I am not sure if I understand your argument.

If whoever develops and hosts the service gets to limit what is allowed, then why Google shouldn’t censor its search results?