@Robin *******
I have no idea what you are trying to infer here. Where do you come up with this absolute crap about you’re only allowed to do 90 days?
This type of advice just spurs fear into new travellers to Thailand and is just so way off the mark of what is really allowed.
A traveller to the SE Asian region, with a passport that allows a visa exempt entry is allowed to enter for 30 days, plus an extension for 30 days. They could then “border bounce” to get another free 30 day stamp and extend that once. They’re allowed 2 land border bounces in a calendar year using exempt or technically unlimited via air (until an immigration officer thinks they’re trying to stay long term on short term or no visas). But stating that you’re only allowed 90 days max is just wrong.