Can I travel from Australia to Thailand on a visa exemption and then to Vietnam, returning for a further visa exemption period?

The user inquires if it's possible to enter Thailand from Australia visa-exempt, travel to Vietnam, return to Thailand for another visa-exempt stay, and perform a border run to extend their stay. Comments confirm that while this is technically possible given the user holds an Australian passport, they should be cautious of immigration scrutiny for frequent entries. They are advised to ensure they have proof of onward travel and to stay updated on the visa exemption rules, especially as the 45-day exemption will end March 1.