it is a rule in almost every country, that once you spend a certain amount of time there, you become a tax resident. Don't spread ignorance because you dont want to believe it.
The rule is that if you spend more than 180 days in a calendar year in Thailand, you are liable to pay income tax in Thailand.
What visa you're on, what you do for work, how many sheep you own or how often you fly in and out has no effect on this rule.
Go to your local tax office and get a tax identification number so you can pay your taxes in Thailand.
The "others are saying" part of your post is just for people who have just come to Thailand and don't want to become tax residents before they've been here for 180 days first. They still have to pay taxes here after that.
it has been planned for 6 months and not been announced to be implemented. It might never be. Don't plan around speculation, especially when it comes to thai immigration.
Easy. Go to the Philippines. You can stay up to 3 years at a time on tourist visa stamp extensions. And you can apply for a retirement visa there if you're older than 35, which you won't need since you can stay with tourist visas.