Facebook makes it easy to reduce chatter from Facebook Pages that you have deemed to be consistently garbage. Click the down-arrow glyph icon on any post and choose the "Hide all from XXX" option.

This also seems to work for posts from a certain person as well in the case of share-alongs that you see from Friends-of-Friends.

I did this a few times this morning and I am already seeing more posts written by people I have actually friended.