A search engine spider that does data mining is essentially looking at the links on pages and following the links looking for specific data. While a more general spider may be recording links then reading the newly discovered pages that contain the fastest growing link counts.
Thin sites and thin affiliate sites
Thin affiliate sites are normally thought about in terms of affiliate marketors who add no new content. There is nothing specifically about doing affiliate marketing that Panda does not like; It is a matter of how it is done; Or a matter of how much good content exists on the site.
