Is the visa exemption for land travel in Thailand 30 or 60 days?

The standard visa exemption entry for Thailand, whether via land or air, is generally 60 days. However, there has been some confusion regarding extensions, particularly for land entries. Recent guidance indicates that land entries under visa exemption may not be eligible for extensions, while entries by air have more lenient extension possibilities, albeit inconsistently enforced. It's also mentioned that travelers with a history of denied entries may face challenges regardless of whether they are entering for tourism or other purposes.