When you purchase your web hosting plan from Inmotion hosting, or when you purchase a domain from a company like Godaddy, or Namecheap, you are offered the option of registering your Domain using Domain Privacy.
This means that the details of the ownership of the domain will be kept private. If you have Domain privacy turned on for your domain, your name, address, email and phone number will not be revealed.
Instead, the domain will show as being registered by a 3rd party and will keep your contact details private from marketers and other nosey people.
You only need Domain Privacy active when you want to setup a blog anonymously. Domain privacy isn’t 100% guaranteed to keep your blog anonymous though. Most often it is used to curtail marketers efforts to try to sell you additional services for your domain or website.
In contrast, some people will not do business with blogs or websites that are registered by proxy because they can’t be sure who is behind the blog.
If you are setting up a regular blog and you don’t care if people find out that you are the person behind the blog, then you don’t need to register your domain by third party or using privacy domain.