The feature, while welcome, will do little to stop Vine's troubled trajectory. Reports suggest that the app has stopped growing, and many executives are jumping ship. It's still a hotbed of creative talent, but many of its most popular users have migrated to platforms such as YouTube, Snapchat and Instagram instead, where the audiences and advertising opportunities are larger. The company has tried to combat this problem with a "watch more" button that allows users to link longer videos to their Vines. A smart change, but one that's done little to change the app's overall perception -- that Vine is now a quirky, but niche platform struggling to stay relevant.