Okay, I named a name, and apparently my post wasn't accepted. I still feel I need to talk about this.
Some time ago I was attending a sweat lodge which at the time visited a small off-the-grid women's community in which I lived. The sweat was run by a woman who claimed to be Yacqui, but who wasn't affiliated with any tribe. (Thus, no oversight.)
There were several problems
Forum: "Cults," Sects, and "New Religious Movements"