All of these played a part for me. Changing teachings led me to look at old teachings. I realized these old teachings were batshit crazy. Then when I found out how they obscured the truth about these teachings by using half-truths and misleading quotes, it pushed me over the edge and I started searching for everything I could find wrong about the organization. Not to mention many of the new videos (bunker ones included) that are filmed in a soap-opera style when we are told not to watch soap operas. Why imitate something that you denounce?
I remember as a kid reading the Life book on how even Charles Darwin thought evolution was preposterous and laughing at how stupid evolutionists were. Now I realize the jokes on me, and I'm not laughing anymore.