Earlier quoted context omitted.
> Tweeter and all others you mentioned are private corporations. Their goal is to turn profit to their shareholders - NOTHING MORE. Not sure what that's supposed to mean. Would it be OK for a food company to use expired ingredients if it increased their profit, or for FedEx trucks to run over people if it helped their bottom line? Private corporations have various degrees of responsibility to the general public, depe…
I think your analogies are strained. A better analogy might be to a broadcaster, who because of a monopoly on a scarce public resources, does have certain responsibilities. But Twitter isn't a broadcaster (nor are they a public utility), and their value is in their network, which they literally have spent billions of dollars creating. It's theirs to do with as they see fit.
I don't think you should take for granted that this is true. Even privately owned things still must abide by the law of countries they operate in, and even that is just the most crude level of regulation and responsibility a public service has.
Yes, public service is still public even if privately owned. Anything operating open to the general public in this way has certain responsibilities (above and beyond the law) that go along with that. We live in a civic society and we depend on participants in that society living up to their responsibilities as citizens (including corporate citizens).
A lot of the problems we have in our society now result from the abdication of those responsibilities by the people (and corporations) that act in public without taking responsibility for those actions.
edit, for clarification:
my point is that private ownership does not remove a thing from social responsibilities. I understand that some people disagree with this, but it astonishes me that they do. The basic premise of civilization is finding ways to live together in ways that are a net-benefit.