Not all Thais are happy about this law. There have been protests against it. The law is effectively being used to suppress freedom of speech nowadays. And the governmnet managed to twist it in a way to use it protect themselves from criticism to stay in power.
[1] https://www.asiasentinel.com/p/lese-majeste-continues-in-tha... [2] https://www.asiasentinel.com/p/a-victim-of-thailands-lese-ma...