I dont know where you think you are but Suvarnabhumi airport doesn't exist anymore. They demolished it at the start of the pandemic and built a massive new immigration bureau building to process the mountains of paperwork and useless shit now required to enter the country.
Whatever he said is irrelevant, he's currently sending those messages from the shared computer in a psychiatric institution. His opinion is just that, a rambling opinion of a paranoid individual who is currently under observation.