Earlier quoted context omitted.
I don't have a ton of time to search each university's publication database or every 2nd tier research team's private home-grown web site. Journals provide a filtering intermediary that helps me better use my time. Hopefully I can figure out which editorial teams are going to publish good vs ok vs crap research and pick from those, relying on the curative capabilities of their staff to provide interesting and useful…
But they provide a lousy and expensive filtering. So-called "high impact" journals suffer more retractions. http://peterdedmonds.blogspot.dk/2015/06/retractions-and-hig... Society is most definitely well-served by completely decimating [legacy publishers] economic model. Legacy journals stand in the way of progress and they are laughably inefficient in what they do (filtering / online storage / layout (really!) )
Related anecdote: I had a confererence publish a completely plagiarized article of mine, changing only the names of the authors. The paper still contained recognizable photos of my students performing the experiments. I reported this to the confererence and to the IEEE which owned the copyright to our original paper. No action of any kind was taken. Not even a 'knock it off' email.