Re: Solution
Another thing one could try, is using chat from within an online gaming platform (such as WoW etc.).
While they (meaning whoever hosts the platform) probably monitor most of the public chatter on sites like that, I doubt anyone looks into the private stuff, unless someone accuses you of breaking their code of conduct.
A friend and I once sent each other a string of nonsense, that included the words Jihad, bomb, zero hour, Al Qaeda, martyr, infidel, die, kill, and New years eve.
Figured if anyone was monitoring it, a flag would be raised, but nothing came of it.
At least I don't think it did :)