I have always assumed that NSA, CIA, FBI, are watching bitcointalk members.
I still use it, and I'm happy to announce to any of them exactly who I am and where to find me.
The NSA, CIA and FBI were not involved in my case. It is Homeland Security, the US postal service, the US marshals service and a few others you need to be concerned about.
I'm sure there are many departments that are monitoring this forum, reddit, and other bitcoin related activites as well. Some of those departments might communicate with others, some may not. While the NSA, CIA, and FBI did not feel a need to get involved directly in your case, they very well may be monitoring things.
By the way, if you ever happen to be in the Chicago area, let me know. Maybe we can get together for a drink or a meal. I'd love to have a chance to sit and talk with you a bit.