They are finding the newspapers are no longer quoting sources:
Matt Duffy, a college journalism instructor, has noticed that pubs as esteemed as the Wall Street Journal are running quotes directly from press releases without citing the source.
Is this how bloggers should behave - nope. Is it how we should reference work in other PR activities - Nope.
And if you do... chances are you will get exposed as a fraud online.
Ethical and practical reasons not to follow the hacks.