We would like to transform into a video collection site. So the next update will include the ability to add videos to your collection by pasting their youtube/vimeo/dailymotion link.
Like I said, profitability is a not as-important at the moment before we create something that is actually being used by many people.
Sure, try to find a real use and at the time you prototyped that feature, send the link to 10 of your friends. If 3 of them return back tomorrow and after a week if 1 of them still uses it actively, then you are almost good to go.