This is definitely an interesting idea. I like the idea of using it to buy back and burn steem over time. Ideally, the dev team will be able to profit off the website without ads. For that reason, I would rather see some of the money used to promote good content creators.

Currently, it is still very hard to launch a successful steem account (I'm trying right now). I would love to see a way for steemit to further reward users who create good content. Maybe this doesn't have to be directly monetarily, but in a way that helps people gain views.