Also, one question that has been lingering in my mind for years is how can I talk to people in the church regarding the issues in the movement without them regarding it as slander or a personal attack on them and what they believe?
This is what I've struggled with too. I have gotten a "when you say things about GCC which you disagree with or find fault with, it seems like you are attacking me or others I know" response a fair bit, which is really difficult. Because it makes it hard to really discuss things or feel comfortable bringing up things with my closer friends in GCC, since it can so often feel as if they take things personally, and this is not something anyone really wants to do - discuss things which feel like personal attacks against friends.
I also agree with exshep about the variety within GCC. The GCC church I was affiliated with was fairly "mild" in terms of things I really didn't like, by this I mean there were things I did not like and really had some issue, but not a ton with; but conferences like Faithwalkers and local conferences
really brought those issues I had noticed out and made them much more pronounced.