It's worth pointing out that this....
My initial intro to a JW was an intelligent, articulate and kind woman, successful in business, creative and a knock out sense of humour. She then introduced me to a small group of her friends....it would be hard not to like them.
Our studies were interesting....we talked for hours. When I went along to my first meeting I was impressed by the articulate and meaningful answers given at the Watchtower study, and the 'talk' would have been excellent. (Can't remember the title, but I know I was absolutely intrigued)
The congregation was mixed race, very well groomed and I was introduced to brothers and sisters who were clearly smart, successful and yet earnest and eager about the Bible.
My own 'worldly' friends and extended family were also entirely comfortable with meeting and mixing with my JW friends and had nothing bad to say about them.
Believe me, it's a powerful mix.
Think of the many forum members here who write with sincerity, who capture our attention....who are respected - well imagine such characters being JWs....imagine being taught 'what the bible really teaches' by some of the clearly fine folk here.....such 'teaching' in such hands is highly persuasive....and impressive.
Dont underestimate how 'good' it looks and feels from a non-witness perspective.
There are some darn good people who were/are teaching God in the JW way - Some of those people are here in this forum.
I know many, many JWs who would really impress.....and by their very manner and apparent way of life would disarm immediate suspicion.
Think about it.