I got an overstay stamp in my passport a few years ago - the overstay was about 30 minutes! On my next arrival the immi officer in the airport was exceptionally slow at stamping me in - looked a lot at my passport.
your arrogance is overwhelming 😂 not earlier than 72 hours before arrival means later than 72 hours before arrival - which could be for example 3 months before arrival - and that's not what you mean. So it is in fact within 72 hours before arrival and no - your language was not perfect since you wrote the opposite of what you meant.
not earlier than 72 hours before arrival you say which means later than 72 hours before arrival which is wrong. You meant not later than 72 hours before arrival. Can be filled at arrival and up to 72 hours before that.
witch hunt? no. I was told by my local amphur to have my passport verified and other stupid requirements for a yellow book!!​ That's not a witch hunt either - it's just plain stupid.
he said he will be here on a non o next time and will open a bank account and use it for retirement and wants to know the minimum required deposit for opening a bank account and will add money in the account later till it reaches 800k. You didn't get it - he will not open an account on a "tourist visa"