the smilies are because too many idiots can't read.
you have to provide visual aids. face it, most of the world is functionally illiterate. and this place is not writer's paradise. since i quit using smilies i've had to waste too much time clarifying my meaning to dunces. too much!
and since i don't have time to write you guys a novel, i find that smilies modulate meaning. it's obvious.
for example:
suck my dick

suck my dick

suck my dick
see? does the obvious need to be explained endlessly to you guys? "repetition is the mother of learning", but, damn, how many times is it required?