"It just pollutes the web with content that is available in a better form elsewhere." - A lot of this already happens with aggregator sites, blog posts,auto-gen

"It just pollutes the web with content that is available in a better form elsewhere." - A lot of this already happens with aggregator sites, blog posts,auto-generated link bait sites etc. so this is nothing really new , so FB is only adding to the noise. The scary part i suppose is the scale of it. If FB does this for everything and it gets searched/cached by the search-engines , we are going to have to start looking at results from the 5th page onwards.