The panda update has cut the Adsense earnings of a lot of hubpages writers in half, or by even more.
I've not been a huge money maker here at Hubpages, however, I have been paid once by Google. I know for certain that several of my hubs that used to get ten hits of traffic from Google every single day. . . .don't get that anymore. The reason for this is that there are too many poor hubs, and too many poor writers on this site - so obviously, the trash has to be taken out.
I can also say. . . .without an explanation, that a few of my hubs have INCREASED in traffic since the panda update, I have no idea why.
If this site is to continue as a prestigious site where a freelance writer can have fun, and create webpages that sometimes earn money - then we all will have to "hop hubs," and flag the hubs that seem like half efforts, or spam. I'm going to hop as soon as I submit this.