Let’s say: A new Vine/Meme is trending and people wanna see more of it. They can post their Vine and tag the topic or create a hashtag.
The more like/loops it gets, the more it’ll trend in the topic or hashtag. (They will of course have a recent/popular section).
The popular Vines with a lot of likes/loops can be played with a “play compilation” button option without being looped and immediately stream the next popular vine (like Snapchat/Instagram story) about the popular Vine so people don’t have to download them all and post a “Vine Compilation” on YouTube.