The author of this email gave me permission to post the following "Yes, I am pleased to have you use it. Feel free to edit to your taste."-- which I believe sums up the case well. Thanks D.
If you want to publish someone's address that you got through private channels, better make sure it really is publicly listed in Whitepages. It is still risky because they may choose to unlist it later.
In my database I have people who don't want their mother's maiden name listed, or the fact that their mother committed suicide, or the fact that their grandfather was part Indian, or the fact that their father was illegitimate, or the fact that their brother died of AIDS (even though all those relatives are dead now). True, the information can be deduced from public records, but putting it on the Web makes it highly available for abuse.
Like most Web genealogists, I routinely publish only name, gender, and relationships for living persons. In addition I promptly comply with ANY request for additional confidentiality, even if I think the request is silly. I remove it from the Web or password-protect it. I avoid submitting data that I cannot modify later (e.g. Broderbund's World FamilyTree CDs). But because I cannot bear to actually destroy data, I file private written records of sensitive information, for posterity.
The odds are pretty remote, but imagine your position if someone were actually victimized (defrauded, or attacked, or health insurance revoked) with the assistance of your Web records! :-([Emphasis added]
But the important issue is really one of courtesy, not legality.
Just my opinion.