Basically, they're just a "copy" of Instagram/Snapchat stories.
Why?
According to the designer's it should decrease the pressure on users who find the tweeting too public, permanent, and with too much pressure to like/retweets hunting.
What's interesting about it?
- You can tag there a people who blocked you (that should be fixed soon).
- The people you tag there get a notification
- It can include text, photos, or videos.
- Users can send direct messages from the fleet post