I would say that what gets you in in the first place (or convinces you to stay in if you are born-in) is also what will get you out.
For me it was two things.
First, the (what I firmly believed at the time to be) logic of the prophecies. When it was suggested to me that the dates might be out of sync, I checked them in encyclopedias. Seeing they were wrong and then double checking the WT pubs to discover they actually backed up the encyclopedias (indirectly, of course).
At this point I stopped believing but still didn't detach myself from the borg. I do a ton of research to check everything els, but solely relied on WT pubs and sources such as encyclopedias to do it. I adamently refused to touch anything "apostate". I had to check everything myself. I figured if WT got me into this in the first place, they could get me out. Those were my terms.
Second, I was always proud of the fact the borg was so "clean". In service when the subject of child abuse in the Catholic church came up I would proudly say that if I was in a religion that covered up child abuse like they did in the Catholic church, then I would leave. I couldn't understand why people would stay in such a religion. All the fuss made in the borg even for pornography only confirmed in my mind that child abuse would never be tolerated.
Shortly (a few months after I had stopped believing in everything), a friend convinced me* (I was still refusing to touch anything "apostate") to watch an extract from a documentary showing an interview by Barbara Anderson talking about her experience in bethel and the problem of child abuse in the borg. I immediately read her life story and then spent the next few days reading the different accounts of people on silent lambs and with tears in my eyes.
By discovering that not only child abuse existed but was covered up in the religion I had been born into, devoted my whole life to and literally sacrificed everything to, my relationship with that religion was permanently and totally severed.
It was only at this point that I had no problem looking at ex-JW sites, watching their videos and reading as much as I could.
(*The only thing that convinced me to watch Barbara's interview in the first place was because I knew that someone who had got where she had got in the organization, would never throw it away lightly or give up her whole life work just like that.)