"who knows how many mass murderers are out there collecting your info for their little "list""
You take more chances of that happening IRL every day than you do IRC, by handing ppl far more info on you than they could get from /whois. You have your address and phone number on checks, lots of ppl see each one you write. The unthinking clerk (or you) who proclaims your phone number and address for everyone in line behind and around you to hear. The caller id feature on phones. Business cards or notes hanging on bulletin boards. The employees at every company you do business with. Carelessness with credit card receipts.
While i can see your concern about privacy in general, ppl who get into unpleasant situations IRC generally do so because of info they give to strangers not from what a /whois shows.
