Was poking around the badges, and found the Reaction one, and then went hunting. And found we don’t have that plugin enabled.
I think it would be a fun/useful addition to the server to enable this, as users could react in different ways to different comments.
We actually discussed this during our alpha phase some months ago. There were a few reasons why we decided against it in the end:
discourse_reactions_enabled_reactions)1 & 2 are manageable, but 3 bothers me as a data person. So my first question would be - which emoji would you want to be able to choose from? I am reminded of the Paradox forums, which have only “Agree” and “Respectfully disagree” 
3 does irk me, I just got excited when I saw it was a plugin, and didn’t know about the backend management and data implications.
So used to discord where I can add 20 reactions to something and the points don’t matter.
I agree, reactions are a standard. But this is not chat, and I don’t want it to become chat either 
It’s also easy to dismiss the scores and gamification stuff, but we do want to do a better job of recognising work done, especially where that isn’t code (because counting GitHub is relatively easy)
You can always add emojis in-line 
shall see how the image imbed works for my favorite slack reaction.
Don’t think I can’t see you liking everything sight 
. You have a limited number per day you know …
Also solutions are worth way more, you should get some people to click that Solved button
Was actually going for the 50 in one day badge, Not rank. I did stop as yeah not worth it.
I’m typing in jest, I love your enthusiasm