This is expected to happen. After the surge of cryptocurrencies, Thailand's decision is good.
There are other countries that are looking to crypto's now but they are only seeing the bad side.
But this is a good adoption and it only means that Thailand is supporting cryptocurrencies.
In reality there are many more countries who supports the bitcoin or crypto currencies legally as was published in the G20 summit meetings. There were almost 15 countries who do recognise the bitcoin in full legal way only the thing they lack for it is proper law. So whether it is all about the Thailand accepting the bitcoin or other countries like this, bitcoin always have great adoption option and in the mean time we will have to face many problems, FUD bans and much more.
Thailand however is tourist country, or recognised one and getting crypto currencies adopted in such country would be always thoughtful and it can help grow the tourist excitement. However, we do need bigger countries to spread word like this to see some movement in the market.