It's weird to me that that article's headline emphasizes "angry emojis" have 5x higher score than "likes (and repeats it in the first paragraph) and then only lower down explains it's in fact that any emotion emoji (including "love", "care" and "haha") produce a 5x higher score than a simple like.

And it doesn't even explicitly state it, instead saying first "A person was able to react with emojis that correlated to “angry,” “sad,” “haha,” “love” and “wow.”" and then "If a person reacted with an emoji instead of the “like” button, the Facebook algorithm would see the post as five times more valuable and push similar content.", requiring the user to draw an inference that all emojis were treated equally, despite the priming that it only refers to "angry" earlier in the article.

This feels, ironically, like an intentionally inflammatory framing.