If you use Contributor, the site receives $0.00136* and a blank ad is shown, paid for by you.
If you don't use Contributor, the sites receives $0.00136 and an Initech ad is shown, paid for by Initech.
It will make no direct difference in revenue for the site, but hopefully they can get indirect benefits from people being less inclined to use ad blockers.
* $2 CPM at 68% revenue share