I think the difference there (between your proposition and Scientology) would be that you seem to want to reduce the jargon in discourse, as opposed to adding to it (which has the effect of increasing the mysticism and prestige). I agree. I think transparency would clear up a lot of things. "Sin", for instance, is ill-defined, but very powerful as a concept. It seems to universally carry people into suffering. People behave exactly the same, with the exception they wallow more in their perceived errors. That's pretty sad.