It looks like there was a fair amount of overlap in abusive twisting of the scriptures. It is so strange (but again perhaps not) when my developing critical thinking skills unearth some new way in my life was controlled. Despite the fact I've been out of the group for close to 10 years now.
Blondie: Those quotes could have come straight from sermons I heard when I was a child. I love how you are able to go back and cite source material. I threw out all of my old literature to try and purge it from my life. Problem is that it is harder to purge from the head It isn't so much that I believe that way anymore but some of my knee jerk reactions tend to surface now and again. Much to my chagrin. Anyway there are plenty of Herbert Armstrong worshippers who have archived his materials on the internet so if I need to verify that 'yes' something did happen, there's evidence.
Pterist: What you say about the reaction by the wcg elders in Florida was pretty typical. I was raised in a fairly conservative area (Indiana, not England. I just watch too much bbc and pbs. I also joined the Episcopal church a couple of years ago so some of the anglican phrases have probably rubbed off on me) The area I was in while in WCG had a pastor who couldn't go along with all the changes from on high and so there was a huge amount of confusion happening. Things got really messy.
NeverKnew: There is a group out of Korea that has some really uncanny resemblances to the Worldwide Church of God based out of California. I didn't hear about them until about a year ago. When I looked them up I found too many things in common to be coincidental. I suspect that their leader had some association with Herbert Armstrong (the leader of WCG). But what I have no idea. I'm so sorry your niece got sucked into their cult.
Lost Generation, Ignat, Fed-up, and KurtBethel; Those verses are familar as well. Conform or die was the message we got continually.
Thinkaboutit,00Dad, and Clarity: I totally get that. Been there and even had a lousy youth camp teeshirt for doing it.