The pages I get in my Google results from Mahalo seem to be along the same lines as the Experts Exchange pages you get. Annoying pages with crap ads all over them that just clog up your results.
Google should just blacklist the entire domain and be done with it. Do they really provide any value to the Internet at all?
If you scroll to the bottom of the very long Experts Exchange page, the question and answers are down there. While I realize your question was meant to be rhetorical, EE has answered my question a few times, and I want to say that they do provide some value, which I suppose is reflected in its page rank.
Yeah, I realize if you scroll all the way to the bottom and ignore all of the up-selling of premium access, you can see the real answer, but their pages are designed specifically so that you don't notice this and don't bother to scroll so far. I just use Experts Exchange as an example because they seem to be another company that uses SEO gaming techniques to get a PageRank that isn't really justified based on their content.
I'll admit, I have gotten an answer or two from EE, but at the same time I also wonder where they stole the real content from. These companies that do SEO rarely generate any real content themselves. They all violate copyright in flagrant ways.
Google should just blacklist the entire domain and be done with it. Do they really provide any value to the Internet at all?