Well, I'm not Thai. But Mr. Megatop is.

I think you all have it mostly right. Thailand's Buddhist-dominated culture has a very live-and-let-live ethos. People don't pass judgment on one another much, although at certain levels of society conforming to expected behaviors may be pretty much required. You can see acceptance of gays and transgendered people almost everywhere, at least as far as I have seen in Bangkok. The level of acceptance and, perhaps consequently, the number of openly gay people is very high in Bangkok as compared to other cities like Hong Kong and Singapore.

In general, I have found Singapore very conservative on social issues. The family is very important to Singaporeans and their government, which is struggling to combat a birth rate well below the replacement rate. In addition to moral objections, sometimes based in religion, some in society and government may see "allowing people to be openly gay" as a loss of potential breeders. In any case, historically the government has been rigid on any number of social issues, although a loosening of restrictions has taken place in fits and starts, primarily when the opportunity to make money has been at stake. The effort to attract the pink dollar got started a few years ago, only to spawn back-peddaling when--horrors!--undercover agents actually saw men dancing together at one of the circuit parties. Even today, gay bars are not officialy allowed, and the ones that do exist must make a pretense of inviting women. Gay rights groups still have trouble organizing. But perhaps as the old guard moves on and a new generation takes over, we will see liberalization with gay rights as we have with other issues (e.g., gambling).