It would be nice to be able to react to messages with different emojis

This is almost standard behavior and can be found in Slack, Discord, Facebook Messenger.
It's also being used by Keybase.
Thank you.
Just to add on, this is one of the key features used in iMessage groups. It's hard to imagine using Signal as my sole messaging platform without this.
Oh cool, does that mean it's being implemented?
I think it means that they'll enable this feature soon
Finally it's here: https://signal.org/blog/reactions/
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Finally it's here: https://signal.org/blog/reactions/