Visa status makes no difference to tax. Depending on how much money people are bringing in, depends on whether they're assessed or not. Expat retirees generally only bring in pension, so they won't be paying any tax, and in all likelihood won't have to file a tax return
I've never kept savings in Thailand as I use the 65k per month method, so never got interest, never paid tax. And still won't be paying tax in the future
If a foreigner is stupid enough to buy property in Thailand they deserve everything's that comes their way. Pensions are protected by DTAs. Won't make any difference to most
You paid real money for a fake document, when you could have just bought the real thing? If it works for you it's good, but you were still scammed. It's a bit like saying "Hey I paid 500 baht for a taxi ride which usually costs 300 baht, but I got to where I wanted so how was I scammed?" If you're happy then it's all good! 👍👍