Another source of information leakage is his DNS records. Either he hasn't been keeping up to date or you just found out the riverside street in Slovenia where his parents live. ^_^
That one's more pernicious; top-level registrars usually demand that it be accurate and might threaten to take your ___domain away if someone reports that it isn't. There are whole companies which specialize in the service, "we'll be your official DNS contact so that your personal data isn't leaked through the WHOIS database," but the last time I checked was I think two years ago, and at the time the service-providers for this were either (a) really shady or (b) really expensive. It looks like the prices have come down a good deal from where they used to be, though.
Namecheap offered me one year of WhoisGuard with my ___domain, and now it only costs $2.88/year. Gandi seems to offer it for free, and so does Google Apps if you get a ___domain from them.
Is your name not Swizec Teller, as it says on your website and supposedly real name policy following G+?