Well, technically we do things like ban outright lying in advertising already, but it's called regulation. Usually when people talk about "bans" they mean blanket bans for an entire industry, like, banning guns, banning fast food, banning drones, etc.

Post I was replying to said (hyperbolically) "ban all communications".

The part about ad campaign transparency was good though. Corporate facebook page data doesn't seem accessible at all. Is there an API for this data that I don't know about??