Is fast track immigration service in Thailand reliable and can someone get arrested for a fake stamp?

The conversation discusses the legitimacy of fast track immigration services in Thailand. One user mentions their positive experience with a service called Swadeee by AOT, while others clarify that fast track services allow travelers to go through immigration without long waits. There is a concern raised about a situation where someone was arrested due to apparently receiving a fake stamp, which another user explains may be due to the person being on an overstay and using unrecognized stamps. The discussion also highlights that business class travelers and disabled passengers are entitled to use the fast track lanes without extra cost.