GG confirms that a members site was banned due to keyword-stuffing and linking to a bad neighborhood. The interesting thing is that the site was showing up in the index as an URL (no title or description).
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BeeDeeDubbleU, now isn't it easier when I can tell what you're talking about? :) Looking at that, seems like there was a lot of link stuffing going on in the past with that domain and 8-10 others. I'll ask someone to re-investigate and check if the links to the bad neighborhood are gone, and if they are they'll reinclude the domain. I'd give it about a week or so to start to see any positive effects though.
Hope that helps,