Just imagine if you had a contract for ฿100.00 thinking it was 100 bitcoin but the other person pays you 100 baht instead.
Agree! Also, I don't think this will help Bitcoin adoption in Thailand which is something I am working on. Thailand already has a law against community currencies. As far as I know this law hasn't been used against Bitcoin yet, but this is something that may change if "patriots" there get annoyed.
Please don't.