Not everybody has to be cool :3

Cool is overrated-

And think about your comments, try and make them sound knowledgeable. If you use to many acronyms it makes you sound like a punk (in my own opinion) I see too many people that don't use grammer (Something be like, Thurnk, Dat be true, etc.)

Looking back, I realized you were talking about cool, then I realized none of what I just said applies..... If you want to sound older than your age or knowledgeable then that's the way to go.

Hopefully, this was helpful.