Having grown up chatting with friends and hitting on chicks via MSN messenger, I’m aware. "I’m gonna get you for that 😡 " and "I’m gonna get you for that 😜 " are two different messages.

I will allege that emoji are badly suited to that task though. First, there are too many emoji. Even just the facial expressions, there are dozens of them. Second, they aren’t designed to parse to emotions, they’re designed to parse to facial expressions. Many of which are specific to Japanese culture. Third, they’re rendered kinda tiny in a lot of fonts. With a font size and screen zoom level set where I can comfortably read text, many emoji are just…yellow circles. Or little blobs of color that I have to bring the screen much closer to my face to make out than the raw text.

Emoticons did the job better with less. But, entropy ruins all.