In World of Warcraft
you could see what the enemy was saying (The Horde if you were Alliance), but it was encoded to look like a language you couldn't understand.
Except LOL which was obviously.....KEK!
OT: This cartoonist does alot on Reddit, I never get any of the meanings of them, just don't get it, why the sub doesn't have filters like other subs so people who want to read about a subject can't filter this 'stuff' out. (Killjoy I know!)