Could be because the DTV holders are Burmese, although even so, they shouldn't be denied. Still, I can see why they were targeted based on their nationality.
There were times I did that when I came in from my country but not on re-entry to Thailand from Cambodia, Malaysia or Laos. By the time I come back from those countries, I won't have much cash left. I will always have enough to pay for my expenses to get myself to my house of course, which may mean one night at an intermediate hotel (especially if coming back from Malaysia, which is far). Returning from Vientiane, Phnom Penh etc that can easily be done in a day.
Good luck trying to pay tax based on making an ATm withdrawal. An absolute bunch of nonsense and completely unenforceable. Probably made up by some illegal foreign tax adviser as well.
Correct and apparently immigration has already stated that they won't be coming after other visa holders for tax. Not their jurisdiction anyway. Only applicable to the non B.
Good point, I don't. Actually, I sometimes carry lots of money when I leave Thailand but when I return, I have little left. That's because I spend all my money in the country I go to. I make sure I have enough left to get home. By the next day or the day after, I'll have more money again but I don't need
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Baht to drive myself home from Cambodia for example. I need just enough to pay for fuel, a meal and so forth and once I'm at home I can sort out the rest.