One major motivation for hiding whois information is so that the internet scum brigades don't send a SWAT team to your address with a malicious 911 call. But th

One major motivation for hiding whois information is so that the internet scum brigades don't send a SWAT team to your address with a malicious 911 call. But this is mostly an issue for individuals, not businesses - so in the case of a sole proprietor, you do have a pretty good motivation to hide your mailing address and phone number even if you're doing business. Sadly this is the reality for individuals these days, until society catches up with technology - having your mailing address and phone number out and publicly accessible is actually quite dangerous.