I suppose that makes sense if people are looking for something similar to something which I know. But similies don't work when people don't know what is being referred to; many people looking at our home page are probably puzzled by some of the items and thus don't know the features which we're trying to sell. I've passed through Digg but had to look at it to figure out its relevance to "Articles" for the above list.
And I'm not finding the Babelfish-like multilingual translation tool on the Features page. Is that also available in the Chat tool? Translating discussions would explain why it uses many resources.