slimboyfat:
It doesn’t alter the fact that JWs are growing while most other groups are declining. That’s all I claimed and that’s what you originally objected to.
No. It's not. I originally objected to your incorrect assessment about the way JWs count membership.
To the extent that it is true that mainstream denominations are in decline, this is fairly mundane and some of the reasons have already been provided.
At the same time, it’s worth noting that Christadelphians and Brethren also disfellowship and yet they are declining. So disfellowshipping alone doesn’t seem to be a magic bullet for growth.
Christadelphian 'disfellowshipping' does not require social shunning. I don't know much about the Brethren, but according to what I've checked, shunning those who simply leave (as opposed to committing other specific ‘serious sins’) has not been mandatory since 2002, at least among the Exclusive Brethren.