The recently introduced Facebook Reactions are here to stay. It's a good thing. Quite simply they let users express they emotj-ions in a more granular, contextual way.
The idea of categorised "likes" had been offered a few times for Dolphin, but has never been mainstream enough to justify development for thousands of Dolphin-based sites. Now, however, it will quickly become a convention that end-users would come to expect. Moreover, custom reactions selection could be used to reinforce a niche community theme.
We plan to add reactions as a module for 7.4. So far we think it would be "like, thank-you, love, happy, sad and angry" by default. What would be your ideal combination? Why?