QuoterrmoderatorThe are millions of Mormons, hundreds of thousands of JWs in the US and no reliable numbers on Scientologists have ever been objectively verified.
See
Articles examine this under group subsections.
Many groups do seem to inflate their numbers.
Scientologists say they have millions of members, but critics say they have around 100,000 to 200,000.
Another example woul
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Destructive Churches