1. Stickers are cute. They're more enjoyable ways to send canned responses and reactions.
2. Having had them for so long chats without status feel weird now. They turn chat from sending letters into conversations. It's the difference between leaving a note on someone's desk and talking to someone face-to-face.
3. Stories are nice for when you want to be like "hey this happened" or "look at this cool thing" but don't want to spam your friends with notifications.
4. I hate staring at the same background all the time. I change them for the season, things I'm into at the moment, holidays. Same with my laptop wallpaper.