This one.
People think it doesn't matter how you write on the internet.
But, seriously, if you want a professional looking book, don't go around using text slang. I still use proper grammar whenever I text.
Ex: Harreh walked in2 da rom. He hit hed on a poll. "oMG LoL Harreh dat waz sOoOOoooO funni!!11!1"
Can I just shove a dictionary in your throat?
That is all.
