I think what alot of people keep missing is that Vietnam has communism rooted deep in its culture.
I would think that accumulating massive personal wealth like the Flappy Bird guy did can cause some problems with the government and the general population when the media portrays something in the way they did with Flappy Birds.
It might just have been very unsettling for the guy.
Not really. Vietnam has changed quite a lot since the war and the 90s. Someone with a net worth of 1 or 2 millions USD is not considered to be "massive" rich.
So far, the only official comment from the government is that he should pay income tax (which is reasonable I think). It is also stated that he will get a favored tax rate, since the government wants to encourage developers like him and IT sector in general. Note that income tax was introduced quite recently in Vietnam (a few years ago I think) and the tax rate is pretty low, compare to other countries.
Generally speaking people and the media have a positive opinion about Dong. Some even say Vietnam is proud of him, he inspires young Vietnamese developers (communism, remember?), etc. Of course, there are haters, just like anywhere else.
