I think curation could be an additional use case and could create a customized experience for the user. Let’s say I have a specific style/genre that I lean towards and curate a nice collection of videos that fit that specific style. Someone who enjoys the same style could follow me because they know they are more likely to find exactly what they are searching for. A general search function is better than nothing but can be horribly flawed when it comes to personalization. By rewarding the curator for creating a great collection, it’s a double win because, in essence, you’ve also created custom “channels” that are constantly updated with new targeted content and, honestly, that can’t be done well without a human touch ;)