There was a guy named Sabu who was part of Anonymous. He connected to their IRC server over Tor. Did it every day for months. One time he misconfigured his IRC client and connected over clearnet, exposing his IP address... to the feds. That's how they busted him. You only need to fuck up once to get screwed. You can do everything securely for years, but one fuck up and it's over. That's why you should do things securely every time. I encrypt my address every time, because I don't know when the SR server might be compromised, or a vendor gets phished and someone accesses his account. He sure as hell won't be reading my address.