I sometimes think there should be two sites, one for ex jw atheists and one for ex jw theists. But diversity is good. I just want you to keep your faith strong, faith is a precious thing and no one should take it from you...as long as you are not too judgmental of others or preachy rude or arrogant (like another religious poster was a couple days ago). And atheists here can be very arrogant as well. They can not be preached to, and trying will be fruitless and just add to their detraction from faith. I am a Christian, and even I am repelled by too strong preachiness. But I agree with you in your sadness that so many ex witnesses choose atheism, but can understand why. And not only that they were presented with an angry God lacking in grace and mercy, but their lives were highly controlled and they want to be completely free to finally live and think on their own terms, without any credence to anyone but themselves, and not to live by faith but by proof. a part of me thinks very similarly, yet along the way I fell in love with Jesus and won't let go of that and he is the savior I needed and will always adore.
Anyway, I did want to say welcome, and remember to not be too preachy here, it will have the opposite effect you intend, but it is nice to have another Christian around :).