Is there a limit on the amount of time I can use the visa exemption when flying into Thailand with an Australian passport?

The visa exemption for Australian passport holders allows them to stay in Thailand for up to 30 days when entering by air and up to 15 days if entering overland. There is no specific limit on the number of times you can use this exemption, but it's important to adhere to the duration of stay permitted, and excessive use could raise questions by immigration officials.