Don't DVM algos just serve up a variation of the fixed lists, since they look at what people are already looking at, and everyone is looking at the fixed list? I don't think we're going to get around actually analyzing the content, rather than the content-providers.

It really depends. They could dynamically analyse some recent (popular) content, group it into categories and suggest users that wrote that content. This way suggested users would be up to date and not some chosen people forever, regarding if they are active etc.