I’m not talking about #metoo stuff.
Assuming we’re using a sane IM app that lets us use standard emoji as a reaction to a comment.
I just mean when someone tells you that they did something and the only information that you want to convey back is that you followed them and did the same.
More concrete example that i encounter few times a week: my pal tells me he’s reserved the gym slot at 17:00, so I reserve that time too and i just want to reply “me too” to let him know it worked for me. (The way it works between us is that we want to go together but since he’s got family etc. i always let him pick the time first and just announce his slot reservation, and i just want to confirm it.)
Another example is if someone says “i signed this petition to support our Czech president who is protecting our democracy” then I want to say “yes I did it too”. Just a nod that we’re standing on the same side.
(Come to think about it, it could technically be used in a #metoo adjacent context, like, if a friend told me “i was abused by my boss” and i could just use the emoji but that would be sooooo wrong on so many levels… You get the point.)


I’ve been in similar situations in large or semi-large chat channels when you want to adhere to something and give the possibility to others to adhere similarly without flooding the channel with messages simply saying “me too”. So attaching an emoji reaction feels more adequate, that way anyone can just append their own and you can see groupal adhesion directly. Sometimes 💯 works, but it sometimes doesn’t.
EDIT: the more I think on it, the more an emoji saying “+1” feels like it should fill that need when 💯 doesn’t. Maybe someone should propose this to the Unicode consortium
Some might say thumbs up works for that, but there’s also an up or down arrow, which suggests a vote either way.