Originally Posted by Juicy the Manlet

If I get this right, Baddog is talking about filtering for duplicate content.
What are the chances that 2 sites hosted at the same place are going to have duplicate content?

And if you have duplicate content - you are going to get filtered either way, no matter if you are on different IPs or not.

In the past (2000-2004), the purpose of having your sites on multiple IPs was for interlinking all your sites and artificially boosting your sites that way. So having sites on multiple IPs prevented Google from identifying that the sites belong to the same person (and penalizing as a result).

But since then, google has so many tools that they use to find out if the sites belong to the same person - that different IPs don't matter anymore. Google would know anyway.