thailand as a country and their currency tbh are irrelevant in term of bitcoin market so it's not a big deal but this sets a very bad precedences.
The bottomline is bitcoin at this stage is still
For example if us/european government banned bitcoins, it means mtgox(or any legit exchange) cannot accept any wires in and out from their banks or allow their citizens to trade on mtgox as that would be breaking the law. Bitcoin will die, or at min go back to $5 a coin obscurity.
The reason bitcoin is so popular now is not because it's p2p noone can stop it, it's because there are legit exchanges that allow conversion to and from fiat. mtgox has come a long way and finally able to legalize and stabilize their platform.
If mtgox shuts down tomorrow see what happens to the bitcoin prices. Some of you are living in fantasy land holding on this p2p notion as some sort of lock on price..