From the reports here, there seem to be more webmasters having trouble ranking when someone else "republishes" their content on a stronger site. They say they are getting filtered and the copycat ranks.
This was always a sometimes problem - attributing original authorship on the web is a challenging problem. But if there is more of a problem now, as it seems, it started around Mayday - and that alog change was designed to emphasize "sites" that make good destinations for Google Search users, more than just ranking pages. Ar least that's what some Google spokespeople seemed to be saying.
Anything to this idea from what you folks are seeing?