I have experienced this and would like to share it, and/or see if anyone has had similar issues with expired domains:I acquired an expired domain via SnapNames. It wasn't a pre-expiration -- it actually dropped and then get reacquired. For a period remarkably around 6 months, even after talking to Matt Cutts briefly (at SES NYC 2006) about it in the context of the site specifically as well as exploring the possibility that a penalty like that doesn't make sense, the site refused to get indexed. The spider didn't even touch the site. Occasionally the mobile bot hit the site seemingly randomly. There were no systematic crawls. One day it just started crawling (and deeply) according to my logs.Now it gets spidered, but it's in the "sandbox," so we're being dealt another blow by these painful algorithmic penalties.So before I bother with another expired domain, is this anyone else's experience? I'm pretty sure there was no spam penalty applied to the domain, as I looked at it in archive.org before touching it. A penalty like that just seems excessive, but has anyone else seen this? It's rather painful, but life goes on.