BradleyT - 2:49 pm on Jun 11, 2010 (gmt 0)
Yesterday we went from 14 to 22 soft 404's reporting.
Our 404 page returns a 404. What happens is a URL no longer exists so it gets 301'd to the homepage which returns a 200 and google incorrectly labels it a Soft 404.
So I guess Google is now the judge and jury of where we can redirect pages to.
The URLs showed up in the webmaster tools 404 report at one time so I created 301s to get rid of them.