elsewhen - 5:33 pm on Mar 3, 2011 (gmt 0)
I do not see a pattern that thin pages are affected. For example, a page with an image of Kim Kardashian in a dress that I like with simple comment like I love the color or cut or something simple like that is ranking just fine, but a page with a serious analysis of the economy is no longer ranking
Google has publicly stated that some low quality pages on your site can affect the whole site
In particular, itís important to note that low quality pages on one part of a site can impact the overall ranking of that site.
therefore, it doesn't make much sense to try to see which of your pages were impacted more/less by this algo update.