Alan F used to say that people only leave the Watchtower when it becomes personal, which I find to be true. On an intellectual level we can have problems with JW beliefs or Watchtower misquotes, but when there is injustice in the local congregation or on a personal level, that's what really prompts people to leave.
Sure wasn't my case, I left because of the WTS. false doctrines and corruption, in spite of growing up in this religion and having my
family involved.
The 1975 fraud/scam was when the red flag went up for me, as well a couple of young JWs who committed suicide around that year.
The spiritual relationship with god established by the WTS. meant that you had to be fully in acceptance to the WTS. lies and corruption,
I wasn't about to become connected with that kind of godly relationship, wasn't in my heart or my mind.