It's ok that you deleted the account you created when you installed Confluence but for some administrative purposes it will be useful to have at least one account which is a member of the the confluence-administrators group. That group "defines a set of "super users" who can access the Administration Console and perform site-wide administration. Members of this group can also see the content of all pages and spaces in the Confluence instance, regardless of space permissions."
This article has more:
Hey there Community! My name is Vannya Vallejo, the Channel Communication Specialist at Atlassian and I want to help Atlassian users like you learn about our Solution Partners and how they c...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs