Excuse my ignorance on this matter as I am not a pirate. But isn't this fruitless? I just typed torrentz.eu into Google itself and it links to it. Since they don't actually block any mention of the alleged violating site I am guessing they take out very specific pages instead from the search. But if I decided I am going to be a pirate starting now couldn't I just go to torrentz.eu now and just use their search?
What could they possibly achieve in the end if this doesn't curve piracy? Wouldn't it make more sense to leave those links up and then subpoena Google for their records which could very well include information about those who clicked the link? Possibly even down to names and addresses if they happened to be signed into Gmail or another Google service at the time.