You have only to be Thai, not exclusively Bangkokian, to partake in that most reprehensible, not to say high-faluttin habit of posting photos of everything; from your 3rd. cousin's, nephew's, grandchildren's playmates, pets to what you're eating for breakfast, lunch & dinner.
Riddle: There are 5 Asian women, Chinese, Vietnamese, Laotian, Cambodian and Thai, they are all the same height and have the same hair style, sitting at a table, with their backs to you, eating lunch.
How do you know which one is Thai?