The Australian government has issued an updated Travel Advisory at the "reconsider your need to travel" level for Thailand specifically regarding the change in entry and exit requirements for Tourist visas.

Quoted as follows.

Entry and Exit Requirements

Visa and other entry and exit conditions (such as currency, customs and quarantine regulations) change regularly. Contact the nearest Embassy or Consulate of Thailand for the most up-to-date information.

Australian tourists travelling to Thailand through one of the international airports on an Australian passport may currently enter Thailand for up to 30 days without obtaining a visa in advance. This is referred to as a "visa exemption". From 25 November 2008, Australian tourists travelling overland into Thailand through a border crossing may enter Thailand for up to 15 days without obtaining a visa in advance. A visa is required for longer stays or for travellers intending to work or to travel for other than tourism purposes in Thailand.

Tourists who reside in Thailand for 90 days must depart Thailand for at least 90 days before they will be permitted to re-enter Thailand, unless they obtain a valid visa at a Thai Embassy or Consulate in another country outside Thailand.

Thus ensuring of course that the hefty Visa Application Fees are pocketed by the Thai authorities....

Tourists who reside in Thailand for 90 days must depart Thailand for at least 90 days before they will be permitted to re-enter Thailand, unless they obtain a valid visa at a Thai Embassy or Consulate in another country outside Thailand.

Some one should advise them that their advisory is wrong.

It was wrong before the changes even.

Not exactly wrong, but badly worded,

without a real understanding of the visa regulations

Misleading at best.