Alright faggots history lesson time.
4chan's hatred of smileys is two fold. Firstly it is inherited from where it's creator and many original founders previously gathered. Something Awful. Secondly, as many have pointed out, we have images here. This is an image board. Not a text board.
Now there's also the reason that you CAN actually convey tone, expression, emphasis, an detc through text, but stupid people can't figure out how. And thus they use exaggerated punctuations such as ellipses or exclamation marks in excess. The stupid below that is simulating facial expression via simplistic ASCII. IE smileys. And even back when the internet first started taking flight smileys were used only by two types of people. People so stupid they can barely dress themselves- and those trying mock them, whether in jest, or to infuriate another. Thus they became a defining badge of the despicable for the more competent. The situation compounded and escalated itself with the constant influx of poor shorthand/text speech with the rise of chat rooms. As well as graphic smileys. To the point where they even became a massive malware bait for idiots. This all loops back into why SA hates smileys and why they're a bannable offense. But SA is a pile of faggotry in their own right.
And for a time no smileys were ever accepted here. :3 became a thing because it was a get on /tv/ and got spammed all over that board for literally weeks. And I mean hardcore spammed, the likes most of you never have seen. It just became a trendy thing to post around by /b/-tards and eventually liquidated into other boards. ;_; is a thing because faggots who cannot into context alongside a wave of /r9k/ invasions and newfags who didn't lurk. The root of this is all the feels and other vaginal excretions these cocknockers brought with them.