Personal experience varies. That is why all approaches work. This is like a faith v works arguement, or a chicken v eg argument.
One does not exist without the other. Do well written articles on sites that drive content related to refuting WT claims work? Do Dateline episodes work? Do you tube videos work? Yes on some people. No on others. Maybe it starts a doubt in the mind (as it did with me), maybe it confirms a doubt already had. Without activism and KIND ex JW's I would probably not be here.
So both are needed. Support and "we understnad", as well as a more challenging face that gives peoples natural curiosity and desire to defend their faith, and exposure to thoughts we know they are not allowed to think.
It all works, it all doesn't work.
Cedars, I support you for the most part, but your twitter was an unwelcome jab I don't think has any real purpose other than a personal relief perhaps? It still bothers me the ex-JW community is so dysfunctional. But que sera sera.