Answering question about WH/BH websites interlinking.
When you say never link [splogs] to your affiliate site, do you mean don’t link to your money sites, so these should be linked to buffer sites that are in turn linked to your money sites ?
Right. The proxy layer covers up generated (spam) websites. And there is one reason for this – footprints. High rankings draw everybody’s attention to a website. And it’s better for the website when it looks more natural. But don’t be naive about your “perfect” cover. Competitors (not all) and The Glord know about your websites 😉