You know, maybe, as in not likely but who knows.
There might be a way to make this, something that users can disable on a per user basis. But you will lose complex smileys like :rage: :grey_question: :warning: :trollface: :joy: , etc. most of them. In truth smileys were originally, a ":" or ";" followed by something so it's in their dna. :tongue:
If you think this is really important usability wise let me know, and I'll keep it around. When I can, I'll see if there is anything that can be done.