> Since when are emoji professional?
If you're asking whether we use emoji in professional setting to convey important information, yes, we do, in spades.
Imagine you see an alert in slack about a critical system. You can type a full sentence to explain you've seen it and will investigate what's happening, or you can stick an :eyes: reaction on it and actually focus on investigating.
Same if you want someone to wait a bit because you're thinking etc.
You can always type full sentences to convey the same information, but in a professional setting conciseness and efficiency are also valuable, right ?