"I'm still looking for a solution for the situation when I'm trying to communicate without revealing my identity to the person I'm talking with." This exists.

"I'm still looking for a solution for the situation when I'm trying to communicate without revealing my identity to the person I'm talking with." This exists. In the past, it took the form of an "anon.penet.fi" email address. This was a very simple, useful service[1] that many people used to great advantage. In modern times, you can see this very same concept used at craigslist wherein CL maps your email address to a random craigslist email address, allowing you and another party to have painless email back-and-forth without leaking identity. Now that I am thinking about it, you could set up a simple SMS remailer with codes that would allow the same thing to happen. None of this addresses secure comms, but that's not the question you asked ... [1] A "remailer".