indyank - 5:08 pm on Oct 15, 2011 (gmt 0)
1) They never called it as an algo against "content farms"
2) They did say it is an algo against "sites which are low-value add for users, copy content from other websites or sites that are just not very useful". But several owners of sites hit by the first iteration claimed scrapers ranked above them.
I think one should also read it as "sites that copy content from other websites and that are just not very useful".