I have come to accept that there are more wackos on the internet, than there are good people.
Some of my websites get continuously bombarded by SQL injection attacks from all sorts of countries... not to mention bots and crawlers that do nothing but harvest information from your site all day long.
I don't know if it will give you more benefit than risks, if you expose your true identity on whois info complete with your home address, phone number, and working email.
I for one, will put up Whois Privacy Protection, then just display my contact email on the webpage itself. I get offers from buyers that way, so i don't think it's a hindrance if you are on whois privacy.
And i sell my domains via escrow like Sedo. So atleast the buyer can be sure that Sedo has checked me out with my real identity being a certified Sedo member.