Reducingtheamount ofcontent a specificusercanaccessincreasesusabilitybecause the irrelevantcontentno longerdistracts the user; the user accessesrelevantcontentquicker.
However, the sites that claim to be unfairly demoted may simply not be relevant in searches for a host of other reasons, such as irrelevantcontent or paid linking.
And while it seems highly unlikely it will split this service off and sell it individually, it too is a vision of the future: A direct connection to the entertainment providers you want rather than buying huge packages of mostly irrelevantcontent.