I used to work for a company that sold furniture online. We were good but the majority of our business came from the beloved serps. It hurt us dramatically when our boilerplate product copy, sent to all online retailers, counted against us as though we were spam. It was beyond my capabilities to develop a method to automatically reword the copy. Surprise, surprise. We started to pay people to write unique descriptions for the products that everyone on the net was carrying. Then affiliates would pick it up and screw us again. That's it. No happy ending. Company was bought by our most underhanded competitor. Now I do my own thing.

I should note we rode the Google gravy train for about 8 years before that happened. After "panda" the company couldnt afford to buy every bit of its traffic. I doubt that's what Google was shooting for with that update but it really changed some lives.