"I'm unsure what possesses a person to think they can engage with reputable providers anonymously. If this is your expectation, it's highly likely you're one 'fun' time away from a sting or robbery.
If this is you, I hope they take your clothes, abandon you in the Bed Bug Motel with your weenie in your hand, and leave you to consider what kind of makeshift garment you can construct from wash cloths and pillow cases."
Anyone who says this would be off my meet list because it's not rational thinking for those who use other methods like references, P411, meet for a drink or other. An ID would prevent none of what you imply with your wish. Saying so is just silly.
Out of at least 100's of meetings over 20+ years and never providing an ID or my real identity I have a few stories that would make those considering sharing an ID just cringe or maybe leave this arena for good. All these were reputable providers with reviews everywhere and even acted normal on discussion boards.
Once the cat has left the bag, it can't be put back. Might as well just post your ID on social media then direct who you want to see to it. If I had nothing to lose maybe but very few are in that position....and who wants the risk of a BSC lady using you as her pin cushion? Or worse, the feds show up because she and her associates you did not know about were arrested on an unrelated federal crime. Hey, your name was in her phone, computer, docs so you may be involved or worse it's published on the internet in connection where it stays forever! Explain that to your family, friends, boss, business associates, customers. That has happened and worse.