The 180-day tax residency has always been a thing but only the last
***
years has everybody been panicking about it. Being tax resident does not mean you have a tax liability. Only if you bring untaxed money onshore, earn money in Thailand or have investments in Thailand do you require a TIN and file a tax return, otherwise just enjoy your holiday in Thailand. As a tourist you are not even allowed a bank account so stop worrying about tax liability.