. I've had same home adress on tm 30 for years. I've travelled around inside Thailand many timesand never had to redo it. A couple of years ago they changed the rule and a new tm30 is only required if you leave thailand and re enter. It used to be whenever you stayed away from tm30 adress but they finally saw how stupid it was and changed it.
. We would all be living here on tourist visas if it was that easy. It's immigration you need to convince. Tourist visas get a lot less scrutiny than visa exempt entries over and over again. It's how it looks to the imm officer when they look at your history. Any immigration in any country can refuse you entry as a tourist , they have total discretion, don't need a reason.
Get a tourist visa instead of bouncing on exempt and they are much more likely to leave you alone. Metv is actually cheaper in the long run