I think part of the challenge is discretion is necessary in today’s environment. The realities of enforcement (spas being raided, individual masseurs having issues at border crossings, etc.) make everyone more leery to share openly. This has been stated by others, but I’m cautious to share openly with those who are brand new to the forums or don’t post much because you never know who is on the other end of the keyboard. Those conducting enforcement are absolutely using forums like these to gather intelligence.
Now, regarding the original frustration expressed by the OP, I am sure some of it stems from masseurs wanting to avoid the burden of maintaining a strong reputation. The environment exacerbates the situation.