He may have shut the site down but according to Kansas law he has some liability!
From the Kansas Open Records Act (KORA) FAQs
If I want to use a record that has names and/or addresses on it, so that I can contact the people listed in order to sell them something, may a public agency deny me access?
Yes. The public agency cannot provide you with those names and addresses if you want to use that list in order to contact those listed in an attempt to sell them a service or product. K.S.A. 45-230 prohibits giving or using information contained in public records for that purpose.
http://ag.ks.gov/legal-services/open-govt/kora-faq