It is crazy. If you move out even for a day from Thailand, the next time you like to report the 90 days online it will not be anymore possible. You need to go in person to the immigration office bringing along with you the passport and each one copy of the passport pages having a Thai information, like year visa, multiple entry, last entry in the country.
Very nice this new request. Loosing almost half a day and expulsing gas from the car escape tube. Very friendly for the atmosphere.
why we need to do this after being registered at the airport and registered latest after 2 days at your location. Seems not to be enough.