In the newest Preview Version, the Chat Message whenever someone emotes got added back. 
I'm sure this was intended to be a helpful feature for people to communicate better, but it has a downside, and it's Spam. 
The last time this "Feature" was in the game, people spammed the chat full of emotes.
Since it is client sided, you cannot hide or cancel these Messages, that means people can spam your Server chat full of Emotes and there's no way to stop it.