Agreed. I feel like @KCRob's statement could/should be a whole thread of its own to call this behavior out.
I'm the OP of this thread, and I agree with providers having a list that they can put clients on but publicly sharing someone's phone number because they didn't set an appointment or keep an appointment is a real piece of shit move. If the person stole from you, was violent towards you, or threatened you in some way- I get it. Green light. Destroy them. But just because they are rude, or flaky, or disorganized, or their life suddenly changed is really unconscionable and is likely to land Mocha aka Jarrod Brandon aka Joey Bryant in some trouble of some kind somewhere along the way.