I'm trying to make a list of all possible implications/problems that this ruling can make. Please send me a direct mail with your questions and I will forward them to a good lawyer (actually, the one involved in that case).
So far, questions/implications I've seen or came to me are:
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Any statistics tool those results are public and contains IP addresses (webalizer for example).
This case if clear to me, no need to argue. You can't publish the IPs. Ensure that you set the correct option to avoid that part of the stats or maybe there's an anonymizer flag, or maybe, don't make them public.
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Wikipedia, if hosted in Switzerland, cannot publish anymore the IP of anonymous editors.
This is also a very clear case, you link the IP with an activity and are therefor protected by the law.
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Whatever Blacklists without consent of the admin of the IP..
That's an open question, these blacklists are often listing services IP (not personal computers with humans behind). I'm thinking about anti-spam blacklist, like that SwiNOG one!! I will clear that point with the lawyer.
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Complete this list please, I want to be sure we can answer all questions at one. Maybe I'll setup a page to help people to understand the implications.
Pascal