Facebook should have no reason to block Current. I don't block their ads, and I've actually found that users of my app end up being more engaged with Facebook.

Facebook should have no reason to block Current. I don't block their ads, and I've actually found that users of my app end up being more engaged with Facebook. Current makes using Facebook a more positive experience, and that's valuable to them as well. It's also very difficult for them to reliably detect users from my app.