I like smileys and I guess I use them a lot, but I try not to overuse them. Sometimes it's just impossible to convey your message efficiently if you don't use one. Although I never use the pixelated one, only the good old colon + capital letter (exception with ":o")/number/random symbol. It's possible to talk without using them all the time, though, and it usually removes your credibility if you overuse them. At least, that's how I see it.