Effectively, people will "block Facebook" from themselves through self-censorship or completely writing off Facebook as a "poisoned well."
While I think the internet provides amazing and revolutionary communications options to the human race, Facebook is quite clearly not among them.
The US will import about $50 billion worth of goods from Vietnam in 2017. That's up from $10 billion a decade ago.
That's equal to 25% of Vietnam's entire GDP.
It's also almost entirely one way, it's about as pure of a trade deficit as they get, so Vietnam is being doused with USD capital the same way China was in the early days of its growth boom. That's going to get a lot more dramatic yet, as the US wants some other large partners to work with in the region. For Vietnam's part, they seem perfectly happy to take the trade & capital inflow and put it to use rapidly expanding their economy.
They have some pretty strange policies here. I lived in Dalat, Vietnam for two years and went to an "illegal" Vietnamese language class. A teacher needs to have a license from Hanoi to teach Vietnamese to foreigners. And since it's apparently impossible to get a license, we were studying Vietnamese illegally. Eventually, the local police got wind of it and broke the class up. So all of the foreigners living here are essentially forbidden from learning how to communicate with the locals effectively. It's very bizarre.