The merit sources are not sleeping, and then you should not worry about it, it's good that they are keeping their sendable merits so that those people who really deserve it will get it. You should make a deep search through all the sections in this forum. So that you'll see that all those merit sources are well doing their Job, and is giving merits professionally.
That's right, Merit source are not sleeping at all, they are active in this bitcoin forum because it will be not logic, if someone not active will listed as a merit source by theymos. I believe that they do their jobs to give their merit points for people who deserve that. Some member here should visit all the forums to know some of them, I bet that there are a lot of members here are only visiting some sections in this whole forum.
