Thank you very much
I appreciate the question. Basically, I wanted to restart sray070 from a blank slate, meaning no games played.
Before the name swap, the originally created sray070 had a non-blank slate and the newly created sray070_old had a blank slate. After the name swap, sray070 got the blank slate and sray070_old got the non-blank slate. By naming the newly created account with _old at the end, the name faithfully conveys that its account now contains the history of games that I wanted the originally created sray070 account to be free of.