If you run subscriber lists online, CANSPAM requires your contact details.
I've had my Student House address listed (since I was a Uni student living w/ roommates).
Today I got an email from a dude who actually drove 2 hours to my old Student house, and was looking for me for marketing help - my roommates were totally sketched out.
(If you're the dude who emailed me today, sorry bud. Just a 'lil awkward for me too.)
This is the 2nd time this has happened. Once in a completely different market.
Do yourself a favor and get a PO Box if you value your privacy.
PS. The email - censored out: