Thanks Marvin, I have replied.
Regarding Clarity's intriguing question about Russell and his followers: I had heard that they had gathered somewhere in the expectation of the rapture and there was even an admission in the Watchtower at that time (August 1914?) that Russell was disappointed that the rapture had not occurred.
I'm more convinced that mentally vulnerable people are attracted to end-times religions rather than the other hypothesis that end times religions "cause" mental vulnerability (which is the untested claim of the ex-JW Jerry Bergman).
My view is that people who are reasonably well adjusted don't deseprately hanker after a belief system that urgently declares the world is on the brink of ending; by contrast, people who are pessmistic about the world's future and who crave certainty and miraculous solutions are drawn to the apocalyptic clarity and (delusional) dogmatism of groups like JWs, 7th Day Adventists and the Pentecostals, among many others.