Pretty sure that's not right...
Link to the question in case anyone else wants to see - How can I display the emoji on Windows?
Weirdly, it doesn't display properly in the edit dialog either:
Oh hey there. Looks like that's my question you've linked there. :P
Michael Frank's answer is entirely correct. As per the premise of my question, the emoji renders incorrectly in both the title and body of the question. The Apple logo there is actually an image uploaded to imgur to demonstrate what the emoji is supposed to look like.
In other words, I think we can safely count this as status-bydesign.