I see there's a wikipedia entry about social media as public utility (which I take to be what you mean by 'social utilities' in the sense of regulation). To my knowledge, though, this is just a theoretical construct, not a legal one, yet in this thread it's seems to be taken for granted that treating Twitter as a utility is just another tool in the (U.S.) government's toolbox. Is there any reason to think it actually is? Seems offhand like a stretch, but I'm no legal scholar.

https://en.wikipedia.org/wiki/Social_media_as_a_public_utili...