I think it's reasonable to expect that at this stage there will be a lot of volatility and disproportionate payouts.
Compare it to the securities market. If there is little liquidity (few buyers and sellers), one trade can have a significant impact on the price of an asset. Same here, as there is still little content compared to Reddit or YouTube, certain content will attract a disproportionate amount of votes.
I think this will even out over time as more users will join, and other platforms with similar models start to appear.