When you first start out you are most likely a little fish in a big pond. You want to find as many ways as possible to put yourself out there! You want to be noticed so that your content gets noticed!
A great way to get noticed is by putting keywords into your profile, specifically your name. It is great to start with your site name but after that, give viewers a quick overview of what your content is about within your name.
Under your account settings you have the ability to adjust your name and your description (about me). These are places where you want to include key words in a way that is natural and easy to read.
This will create a pinterest landing page that immediately tells your reader what they can expect from your pins and also is easily searchable in the search bar.