In a way, the negativity towards apostates helped me to wake up. For a time the indoctrination had me questioning my own motives for doubting, but as things remained unresolved I eventually started to wonder if it were possible that not all apostates were simply looking for their own followers or just couldn't live up to god's standards and left, bitter. When I realized that I had never once actually heard of an example of someone leaving and trying to "draw off followers after themselves" I realized that they might not all fit so neatly into little boxes. Since there's no way to explore doubts in the cult without retribution (unless you're willing to accept the all too common excuses that don't stand up to even passing scrutiny, which I no longer was) I set out in search of information online. Since everything online is apostate (well, I wasn't about to jump through the ridiculous hoops to register on jwtalk) here I am.
Obviously there's always a lot more in play than just one factor, but I think the constant reinforcement that there are people who have left and disagree with the WT will make some wonder if maybe they'd fit in better with that group. The apostaphobia might be effective on those who are fully in and have no doubts or problems with the cult, but I think it can serve to push out those who are only hanging on by a thread.