Tolerance is thin gruel compared to the rapture of absolute truths. It's not surprising that religious people are often better protected by atheists and agnostics than each other.
What makes fantastic declarations believable is, in part, the vehemence with which they're proffered. Again, in the world of spirituality as well as of pop psychology, intensity of personal belief is evidence of truth. It is considered very bad form - even abuse - to challenge the veracity of any personal testimony that might be offered in a twelve-step group or on a talk show, unless the testimony itself is equivocal... Whatever sells, whatever many people believe strongly, must be true.
Interactivity has the virtue of democracy, conferring upon everyone with access to a computer the right and opportunity to be heard, but it's also saddled with democracy's vice - a tendency to assume that everyone who has a right to be heard has something to say that's worth hearing.