I too created my own "religion within a religion" as this guy seems to have done. I dismissed all the really wacky JW Doctrine, and ignored most of the silly rules.
The problem I had was that my JW parents had brought me up to be a lover of Truth.
I could dismiss much JW error as the "mistakes of imperfect men" but when I found out that they were deliberately telling blatant lies it became too much.
I had trusted the JW leadership, and to find out they had betrayed that trust was as devastating as if I had found out my own parents were Paedophiles !!!
If someone has any real integrity,and love for actual Truth, they cannot remain in the JW Org.