Even though it will be unbalanced with users and genres in the beginning, you have to think of the positives about it. What you write here will be here forever, and the payout can be flowing. You can vote for posts that are 3 months old and the creator will receive a reward for it. It's like youtube ad plays revenue, its ongoing, integreted through google search and in the future hopefully its own search so the more people join, the bigger chances of them stumbling on your old posts too.

Always think of the bright sides of a platform and its future prosperity.