For me the solution has been to stick with my national ccTLD registry. If your country has strong private protection laws then your national registry will shield your information for your ccTLD domains from public whois. It's not exactly bulletproof, they still make that information available from their whois database but it's just another step someone has to make to get to your information. That much said, on a ccTLD you should be able to get away with only just a name, surname and a valid email address.

What are the alternatives? Those fishy private protection companies? Technically once you sign up there, they own your domain, simple as that.

OpenNIC? I wish that was the case.