There is an opportunity to use upvotes and downvotes to moderate ads. Upvotes could decrease CPM or CPC, while downvotes could increase CPM or CPC.

I like this beacuse it incentives advertizers to create ads the community wants to see. If the amount of the network's SMT you had was preportional to your vote, your vote would align with your interest in keeping the network value to your community in terms of user experience and market cap.