Emojis are great for conveying the wide and varied levels of human emotion that differ from person to person that may type the same exact sentence with an entirely different meaning.
This is especially true when you have repeated communications with someone and come to understand how and when they use certain emojis.
For this same reason, I don't think they are great for technical information. They feel antithetical to the purpose of conveying exact information. You can use them as iconography, but purpose-made iconography is still superior, in my view.
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Emojis are great for conveying the wide and varied levels of human emotion that differ from person to person that may type the same exact sentence with an entirely different meaning.
This is especially true when you have repeated communications with someone and come to understand how and when they use certain emojis.
For this same reason, I don't think they are great for technical information. They feel antithetical to the purpose of conveying exact information. You can use them as iconography, but purpose-made iconography is still superior, in my view.