Can you tell me how to change the user name which is currently admin.. I have seen various suggestions such as phpMyadmin on the cPanel or add a new user and then delete the admin one. Which is the best and safest. Also, should it be a mixture of numbers, letters and symbols for added security?
Also, what is the actual function of the nickname. Where is it shown? Should it be your own name or something that is relevant to your site?
Finally, the display name. Is this what appears on your pages/posts on your site.