Publishers realise oer is a threat and try lawsuits to prevent. Seems like there might be some trolling in the comments from 'Disgusted of Academia' or possibly publishers employee!
"Late Friday, the federal district court in Nevada issued a declaratory judgment that makes is harder for copyright holders to file lawsuits over excerpts of material and burden online forums and their users with nuisance lawsuits."
The judgment - part of the nuisance lawsuit avalanche started by copyright troll Righthaven - found that Democratic Underground did not infringe the copyright in a Las Vegas Review-Journal newspaper article when a user of the online political forum posted a five-sentence excerpt, with a link back to the newspaper's website.