you don't get six months in europe. Some countries get 90 days and you can do that twice a year, 90 days apart (actually 90 days within each 180 day period). it's not that different. There's no fixed number of times you can do the 60 days visa exempt (30+30) in Thailand. Moreover, ascribing any particular strategies to visa regulations here is about as accurate as astrology. Immigration moves in mysterious ways