Your family will be contacted to decide how to dispose of your remains, this could be via your family in Thailand or a will etc
If you’re alone in Thailand and no overseas family the body would likely be disposed of according to local government regulations and a holding period for collection of your body
I think immigration will flag the glaring issues, the visa category will exist but the requirements will tighten and evolve with time etc it won’t make bureaucracy sense if all other visa category are being cannibalized etc
Anonymous participant not if the visa applicants are fraudulent, sure they want people to come legit and and shut down visas before if there was fraud etc