If it is a personal website, who-is-privacy is ok. If business, then better have the details there as anyways you need to provide these details one way or the o

If it is a personal website, who-is-privacy is ok. If business, then better have the details there as anyways you need to provide these details one way or the other on your website. Normally before I purchase a service or even provide my email id to a New service (read stranger), I check if the domain is legit. If its behind a who is privacy, I would hesitate in giving my info to them. But that's just me.