The example with the plumber was for illustrative purposes to show that: 1) It's not company info, but a person's. Generally, this person wouldn't be opposed t

The example with the plumber was for illustrative purposes to show that: 1) It's not company info, but a person's. Generally, this person wouldn't be opposed to having his info crowdsourced as it means more business. 2) Verifying if this information is publicly available can be time-consuming and tedious, so not something I'd want to get into. I.e., if this plumber walks around handing out flyers it's public, but you can't google him as he's not really into expanding his online presence.