domain name - ip address crosslink penalty

unusal spamming situation and google thrash

[karlap]

I found myself in a unique spamming situation: my index page (and two others) had the following

Welcome to my website - domain name
<A HREF="http://www.mydomain.com">mydomain.com</A>
- ip address
<A HREF="http://0.0.0.0">0.0.0.0</A>

Note: mydomain.com resolves to 0.0.0.0 and vice versa.

This code was in place since the website was launched several months ago, the site was spidered and indexed with not problem. A little over a month ago, I started seeing search results for the same pages, listed under both the domain name AND the IP address. Then my index page disappeared completely.

I realized, after this happened, that I was most likely being penalized for the duplicate paths to my pages (and also realized that it did not matter that my spamming was motivated by stupidity, not greed). So I removed the links to my domain name and IP address, and sent a reinclusion request to [e-mail] per the instructions. I got the automated reply with a case number and a promise of a reply from a human, but no followup human reply. My index page (and directory listing) have since come and gone sporadically, but never as high in the results as before the problem started.

Two questions: does Google penalize crosslinking between matching IP and domain differently than other forms of aliasing, and are reinclusion requests getting lost among the recent Google thrashing?

Thanks.