Yes,
Paid per post signatures create an incentive to post more. That is why I am posting here.

I could end my post right here and get the same. Or I could go on and add some interesting ideas. Bitcoin works as it does because of its incentives and lack of incentives and partly a kind of altruistic charity for our currency. This forum is the way it is because of the same combination of these three elements. They may be in a differing proportion though.
Okay, here it goes. Because Darkcoin has an incentive for people to run full nodes, it has half the number of nodes as Bitcoin does and that is with its much smaller market cap and presumably a much smaller set of users. There is no benefit for someone who isn't running a pool to run a fullnode in Bitcoin. It is all about incentives. By the way, this is a post about signatures. The incentive to create quality posts, apart from the altruistic charity, stems from the unlikely event that someone might tip your post. I had left my bitcoin address in my signature and I never got a Satoshi for my posts. Now, I am putting the advert. signature and I get twenty cents for each of my two cents.
So, we need a voting system. So, that users can vote how much quality an article has. Then require those with advertising signatures campaigns to price according to the quality vote score.
Other people, who follow their reward system better than I do, would have posted two lines without reading the thread probably repeating something already said.
That's my two cents.
sdp