How many border bounces can I do in a year on a visa-exempt entry to Thailand, and will using different passports matter?

The user inquires about the rules concerning border bounces for entry into Thailand under visa-exempt status, particularly after having already entered twice in a year. They express concern about potential difficulties re-entering Thailand at Chiang Mai after another bounce and whether using different passports for entries may affect their situation. Community comments clarify that: 1. There is a general limit of two visa-exempt entries via land borders each year, but no limit when entering by air. 2. Entries are linked via biometrics regardless of the passport used, making attempts to circumvent restrictions ineffective. 3. Based on their limited time in Thailand, they are likely to face no issues and are advised to consider applying for a 60-day tourist visa instead.