Some posts with derogatory trolling comments toward Thai people have been removed:
14. You will not post slurs, degrading, or overly negative comments directed towards Thailand, Thai people, Thai culture, Thai institutions such as the military, judicial or law enforcement system, or specific locations within Thailand.
As to the defamation laws in Thailand, this forum rule is in line with the Thai law:
7. You will not post defamatory or libelous comments. Defamation is the issuance of a statement about another person or business which causes that person or business to suffer harm or loss. A statement does not have to be false to be defamatory. Libel is when the defamatory statement is published either as a drawing, picture, painting, motion picture, film, or letters made visible by any means or by broadcasting, dissemination or propagation by any other means. Defamation is both a civil and criminal charge in Thailand and elsewhere in ASEAN.