"Basically if you never click, Like, comment, or share posts by a Page, Facebook made that Page less likely to show up in your feed. Cathcart says “That’s a relatively large change. It resulted in a large decrease in spam reports”, meaning it succesfully made the Facebook news feed better."

Following that logic I know a really good way to make the news feed even 'better': don't show any page updates ever. Or even any updates at all.