I would suggest limiting the number of users and calling it beta. That way you can be in close contact with these users and actually pull out their feedback. I

I would suggest limiting the number of users and calling it beta. That way you can be in close contact with these users and actually pull out their feedback. I would release a simple MVP--one that is useful to you. Not much more. Beware that users make great editors but poor creators. Get to charging quickly. Once you charge $1, you will treat the project as a commercial endeavor--it will fight for your attention over other work and it is incredibly rewarding.