That ~15lbs. What the hell do you have in your carry-on that weighs 15 pounds? They almost never weigh it but it has to fit in the measuring thing they have at the gate. WITHOUT FORCING IT!
Dude, I have stayed someplace for 30 days with just carry-on. Just figure out what you can buy at your destination. Toothpaste they have everywhere.
It is what it is. I said it is a good idea that you are going back to your home country before continuing your long-term stays in Thailand but keep doing this and you will eventually see that I am telling you the God's Honest Truth!
You cannot think with a Western mindset in Thailand. Not all rules have to be written. You, being a Lawyer (according to a previous post) will further confuse you in Thailand. What is or isn't written is not sacrosanct.
Nobody debunked it. It is just something they have discretion to use against you. As, I think, you posted in your original post, it isn't a problem until it is.
Remember, Immigration has "Discretion" and ot does not always work in your favor. Ignore this at your own risk.
In their mind a "Tourist" does not need to stay more than 180 days a year.
It isn't written but in Thailand it does not need to be.
Going back to your home country before coming back is a good idea. I did the 3-6 week thing also, just as you described. Until the last time I entered Thailand and got in trouble for it.
They don't like you to be in Thailand more than 180 days in a 12 month period.
No, I am not blacklisted or anything but it was an extremely bad experience and I almost got refused entry. There is more to the story but that is the gist.