We're talking about a spreadsheet that is posted to an intranet. If someone in Colorado wants to apply for a Thailand based job and is willing to relocate for the position, then why shouldn't they know about it.

Of course, Thai employers can still discriminate on the basis of gender, sex, religion and a bunch of other things that Colorado employers can't.

And any company operating in Thailand has a local Thai company established, which would be the actual employer for the local employees. So the Colorado law would not apply.