This is gonna be a weird question.
Is the set of emojis just a standard set that can't be changed, or are there other options that could be considered? I ask because the smiley face that occurs when you type the most common smiley (a colon followed by a close-parenthesis) is this:
It looks very smug and, as weird as this may sound, I think the smugness has set off agitation in threads before, escalating the conversation to the point where the thread has sometimes needed to be closed.
Is changing to a more neutral emoji (or even just changing/expanding the emojis) an option?