I think it would be kind of frightening for them to actually be put in the dictionary....I can understand using abbreviations when typing since it's faster, but in real life, I'm not sure. It's fun to yell actualy internet words like "woot" or "pwned" every once in a while, but spelling out things like "lol," "jk," "omg," etc. just sounds awkward and kind of dumb. But yeah, I'm guessing that one day there will be even more of that than there is now :/