OH, MY GOD, WHAT HOW AND WHY?

I didn't understand at first why there was a yellow frame around the icon, I didn't understand what the S next to the nickname was, and then I didn't understand why I could change my nickname!?!!? But when I did I was so pleased and happy. And I'm still excited! :D

Anonymous-Frog if you're reading this, you're awesome and you surprised me a lot, THANK YOU!