ClintFC, I found out about the site: not returning some supplemental results and then went reading WebmasterWorld. I noticed internetheaven's comment, then several other comments such as
(from a moderator) and then someone else said
That was what I was noticing. I'm not saying that that's 100% of things. When I looked through the crawlpages feedback, I did see a few people with spam penalties, for example. That could also explain why a site would be crawled less.
g1smd, I would certainly say that the days of those older pages are numbered in that I expect a reindex of most of the supplemental results over time (although it could take a while).
optimist, I'd expect that supplemental non-www results would be refreshed then, so I wouldn't report those right now.