Why are so many questions about the background of people displaying knowledge in this thread? That is what I'm finding disturbing. I don't know anything about

Why are so many questions about the background of people displaying knowledge in this thread? That is what I'm finding disturbing. I don't know anything about nerve gas, but do know about a couple topics that I suspect would trigger the same people, and it creeps me out that people become suspicious about someone for simply knowing something. Probably worth keeping in mind that not a few people put cryptography in the same "military secrets" bucket.