They can also be indicators regarding if something has been typed in fun or in anger. It is a great way for members to add mood and emotions to posts without having to explain the mood they are in.
It also helps readers not to misjudge the attitudes when they can see what emotion is portrayed.
We need smileys because smileys are freakking cute and add to the entertainment value. I said hip hop, hippy to the hip hop you don't stop, rock it to the bang bang boogey, up jump the beat, now what you hear is not a fake its the real Sitara queen b.
No, this site is not in desperate need of smiley faces, because people can communicate without them. Before the internet, people were able to get their point across without smiley faces. Fortunately, the written word is still strong enough to survive without them. This website allows people to discuss just fine without emotocons. (Insert smiley face here.)