There has to be some form of regulation to ensure that a foreigner living in the country has sufficient funds to survive without being in anyway financially reliant on the government of said country. The majority of countries have such regulations (except UK who appears to let any twat in). How the Thai authorities reached the conclusion that Bht 65,000/month or Bht 800,000/p.a. is sufficient I have no idea but would suggest that it's an average to encompass village residents in Isaan and high flyers in Bangkok (probably biased toward the latter). They are not picking on
@nomad97.
I manage reasonably well on around Bht 40,000/month but I don't pay rent nor do I have any loan repayments. I remember an Australian on this forum stating that he spent over Bht 120,000/month in Thailand so I can see where the problem is for the authorities.