It's what I did some 50+ years ago in the USAF. Now a "sleeper" has awakened in me. I started thinking about the IRS reading all emails and the NSA intercepting virtually all internet traffic. As a retired federal employee, I know from personal experience that when a government agency says things like they promise they won't misuse information, or that they will delete it, they lie!
I have several off-line machine simulators plus one non-machine that would be suitable for forum posting. They can be used in ways that couldn't be decyphered by the fastest super computer.