I like that there's a self-regulating system in voting power. It's simple, elegant, and effective. There's nothing to stop you upvoting as much as you want, it's just the more votes you make each day the less each is worth monetarily. If you don't care about that it doesn't matter, and something Steemit needs more of is people who are invested in the community because it's awesome, and not just because of the money potential