https://mytube.com/$username/my_first_video.ogg
With such a scheme, you immediately know who made it - $username - and (if this hypothetical mytube.com built a proper website) navigating to mytube.com/$username would return a list of videos (maybe with some additional routes for playlists or categories).Sure, now the user would have to go through the additional work of editing URLs if they want to access this endpoint manually, but then this article's points come into play: if your users expect more functionality than what the World Wide Web does well - delivering content - then a native app is probably preferable for everyone involved (and, indeed, exists for sites like YouTube).