In late 2017, Facebook was in the final stages of preparing for a major change in how it ranked posts and comments, and at least one employee had a lingering concern: what to do about the emojis. The ...

Five years ago, Facebook gave its users five new ways to react to a post in their news feed beyond the iconic “like” thumbs-up: “love,” “haha,” “wow,” “sad” and “angry.” Behind the scenes, Facebook ...