I want to second what you said. I am constantly blown away by the knowledge, the cohesive and well thought out posts, and the thoughtful replies by a number of members. Blondie either has a photographic memory or the best database search tool for the quotes she comes up with. Great stuff.
In response to your thought about how intelligent people could come in the 'truth....
In some cases JW-ism appeal to intelligence because of it's emphasis on 'Bible' study. Even though it's primarily the publications, sometimes intelligent people get so caught up in memorizing dates and absorbing all the Society's deep (but bogus) thinking and convoluted reasonings that they miss the point of it being implausible. You get caught up in the "We know something no one else knows" and so it appeals to the egos that sometimes accompany intelligence. People in general revel in knowing a 'secret'. You generally blow off those that disagree with you as "uninformed" and "lacking an ability to understand the deeper things".This fuels many intellectuals, even in the academic world. Some of them have really dumb ideas, but they strongly believe in them and ignore criticism as the 'disbelief of the ignorant'.
One interesting thing I've noticed. Many times people I know who have 'fallen away' are those who studied the most, who understood things on a very deep level. It's typically those people who, after a time, begin to put two and two together and come up with five, then realize that a lot of it doesn't make sense. Yet the comment made is "I can't believe so and so is inactive/apostate/da'd because they knew SO much about the truth." The people making those comments don't realize that is why that person is inactive/apostate - because they DO know so much about the truth.