I think CITES is ineffective because it does nothing to stem the real culprit in species destruction , domestic distribution within the country of origin.. a conversation that has been beaten to death on ST.
And my feeling is that the ones who benefit from this are the ones who keep it quiet and sell through other means ( I am privy to some of the ways they do it, used to work in the orchid trade business, known people personally who got visits from the FBI (buyers), they usually get ratted out by some snitch)... they don't go on ST and announce it .. so if you want to use some Occam's razor , my bet is that Thien has found a legal route and doesn't give a crap about your inquiry. I find it kinda hilarious that his post is still up and his ebay offerings are still up , even after all your stranger danger rhetoric...but even if his plants are illegal..I really could care less (it's not going to change anything about indigenous destruction).....and given what I have seen as to how orchid species become legal for import/export...this is one way to get one step closer to legitimization