@Johnny *********
, before this virus, you could do just what you ask about. Yes, you could do that, but, if it got to be a pattern with the intention of staying in Thailand long term, then you could be denied entry, and it was happening in the previous years before this virus, when the government clamped down on loopholes people were using to stay long term on a tourist visa, or visa exempt stamp. At the end if you had done it a few times, and had not returned to your home country at all, then they would refuse you entry. Lots of expats moved out of Thailand when this clampdown started.