you’re confusing what the intent is now vs what will be permissive. If the global taxation law is passed, it doesn’t matter if you’re Thai or foreigner if you’re a tax resident and the revenue department will have the ability to go after non reporting and remitting foreigners. Enforcement can change instantaneously with a change of revenue department policy, which could be a new minister appointed. You’re looking at this superficially while chastising those who are actually considering what a change in the law can result in. Good luck with your tax evasion.
If the IO believes you’re living in Thailand on tourist visa/exempt, it doesn’t matter if there’s no limit or there is, you’re going to get denied entry. So maybe just either have a visa for your purpose or don’t take the risk? Nobody here can tell you what you want to hear because it would be false.
Not only is creating porn a criminal offense in Thailand, this would also be illegal local labor laws because creating/producing content locally for commercial purposes requires a work permit. So you’d be violating criminal laws, immigration laws, and labor laws. Way to hit the trifecta.