Sirona
Hindu Wannabe
The New age people of course also reject the authority of the religious concept. But those people most often don't follow any serious disciplined spiritual cult but think that they can shop around by reading inspiring commercial books or by going from one commercial course to the next instead of sticking to a serious socio-spiritual philosophy and practice.
RF has a new age sub-forum although there's probably not much happening there. And I don't see why this should give you any right to discriminate against them as you say that only "religions" to this and you allegedly don't. Third, I wondered who else adheres to your definition of a "spiritual cult" but you. Most tantrics keep their practice secret, BTW.