Well, don't do any artificial linking!

And no one said he did, however:



...after watching the video.



And I thoroughly agree as well.



Now, that's what you should have said a long time ago.
So agreed, if you are doing whitehat stuff then it doesn't matter if your sites are on one IP address.

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That's generally an implicit assumption around here.

OK. Here is the thing. Google banned thousands of cross linked websites recently. They weren't on single IP address, but were from
one network. Having additional IPs won't solve these problems. What I am concerned is that having one IP does not provide protection for example if you are a web developer (like myself) and you have clients which you are hosting on the VPS, these clients are often yelling about

"Aaa on the web server you are hosting our site there are too many sites, I am not getting proper hosting solution from you, get me my site I'll host it else where" or

"I saw you have other websites made with same gallery as our website.."

So I can't really host as many sites as I could on the VPS, finding second hosting provider can solve that but I prefer everything to be on just one place, comes thin on the pocket and management is faster.

Having one or two addresses would solve these problems.

You can also buy more than one VPS, of course.

Also, is this an actual thing you've heard from a client after selling them shared hosting, or are you just making this up? And where, exactly, are they going to take their business?

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Google bans cross-linked websites all the time. The issue there is not that they come from a single ip address, or even a single network. The cross-linking refers to the practice of trying to game the search engines by having massive numbers of sites (from ANY network), created by the same person/persons/organisation, linking to the same site, in order to increase their "page rank". Having them all on one ip or network makes them easier to spot, but is not the criteria that makes sites "cross-linked".

Thanks for that link hoopycat. Perfect example.