There are so many websites that share user generated content (you name it- video, audio, stories, images) now that it would be tough to attract submissions and content consumers... Who knows, you could break out of the pack. To get people interested you're better off going with a free app that shows tiny advertisements at the bottom of the screen (like the NY Times app). Best of luck to you 😀
Edit - took my time here, looks like Jeremy1026 agrees with me (although a bit more sarcastically)...