In email, it would just be an annoyance that bulks out the inbox. Not a huge deal, but filtering them out would improve the experience.
Reactions make more sense to me in a kind of communication where you're doing real-time conversational stuff and brevity is important, such as instant messaging. In email, it doesn't really add anything.
Reactions make more sense to me in a kind of communication where you're doing real-time conversational stuff and brevity is important, such as instant messaging. In email, it doesn't really add anything.