You are a funny person. Here we have a discussion about tax, and from that you feel competent to analyse my personality!! Well, I think there is a word that describe such people. Have you heard about the Dunning-Kruger effect?
You said earlier that you did know that Thailand did not tax your pension, but now they have changed the laws. This tells me you are ignorant about tax laws in Thailand. If you ever har read information from Thai Revenue dept, you would know that if you are thai resident (lived here 180 days or more within a tax year) you are obliged to pay tax to Thailand for the pension you bring in to Thailand. That was the law when you first came here, and it still is the law. Nothing new about that!
Every year they make a document in English that describe every post in the tax document ( ภ.ง.ด.91) to declare your taxable income.
Another thing is how hard thai revenue dept work to get those tax money. We know that many thai pensioners do not pay tax to Thailand. Many of them because their pension are to low, but others are simply not followed up by the revenue dept. That is the reason for not following up on expat either. I once ask people at revenue dept why they did not follow up on us expat. The answer was that since they don't do that with thai pensioners, they could not be stricter with expats.
So there is nothing new about laws that concerns our tax liability, the only thing new is a possible stricter practice.