I agree with bonzer's takes on some of the smiley faces....

and I must say I quite like FWIW, and also BTW. But LOL also makes me think of Lots Of Love, which is what it *used to be, n'est ce pas?

And ROTF...whatever...I've never liked that one much either....I try to take these things in the spirit in which they are meant but I don't truly appreciate 'em.