There are people in every belief system, every religion, who are fanatics, scam artists, hypocrites, and out to exploit/manipulate others while waving the flag of their beliefs. "Spirituality" these days is big business, and there are many people inventing their own religions or sects of traditional religions, and exploiting those whom they manage to recruit. Discerning who is authentic in their behavior, following traditional religions, requires being informed about those religious traditions and having the ability to see the difference between the religious person who lives constructively and the person who is a fanatic, scam artist, or hypocrite.
and a U. of Virginia site that compiles information about religious movements, old and new.click here