here should be a way to type "LOL" to indicate that you really are laughing out loud, not just typing "LOL". It's like that thing where people use the world "literally" to mean "I'm exaggerating, but less than you'd think I am if I didn't use the word 'literally'". What's up with that?
I propose "LOLFR", as in, "laughing out loud, for realz". At least until people start typing "LOLFR" when they're not really laughing out loud for real.