indyank - 3:08 am on Jul 25, 2012 (gmt 0)
Yes they did show up in bulk in Webamster Tools immediately after Panda 1.0 was released. This was for whatever sites that I had seen to have been affected by Panda. The same happened to sites that got affected by the international roll out of Panda.
Several of those reported crawl errors were for pages that had been removed years ago or for pages that never existed AFAIK.