Why is that an unpopular opinion.
It doesn't take much to find out a great deal of information on the Internet, especially if you know where guys live.
In some instances, providers are John Doe, Jr. and one can just look up the dad's address. I once alerted John, Jr. to stop accepting very expressive gifts from a client he greatly disliked, but he did not completely understand the possible consequence. His dad was listed in a NJ phone book.