A few basic emoticons - fine. But like a third of emojis are only legible if you know their name (under the particular program you're using, and most of the icons in popular applications are simply ugly; that's a topic for another rant though). I can understand FACE WITH TEARS OF JOY when I see it, but INFORMATION DESK PERSON, TYPE-4? Is this going to be useful 20 years from now? And then you have stuff like FACE WITH LOOK OF TRIUMPH where the picture has little resemblance to the official meaning, which leads one to wonder what your interlocutor meant and how is this icon displayed on their machine.