Consider for example the folks over at
So as I see it, we have a potentially good thing in that people who are, in fact, conducting themselves improperly by violating others' copyrights could be punished in a way that seems proportional--make their sites harder to find. However, unless we enact some serious repercussions for baseless DMCA takedown claims, we run the risk of serious abuse. A company could try to impact the search ranking of its competitors by launching a baseless DMCA takedown notice campaign. The last thing that any company needs is some guy at home in his underwear sending out a new DMCA takedown notice every two seconds just to negatively impact your search ranking. Are we in danger of creating a new cottage extortion industry?