whatsThisText["change_button"] = "If you entered a new nickname in the Change your nickname field, you could click Change to confirm the new nickname."
whatsThisText["revert_button"] = "In the real system, if you changed your nickname but decided that you prefer the old one, you would click Revert to change the nickname back to the old version."
whatsThisText["nickname_field"] = "In the real system, if you wanted to change the account nickname, you would enter your new nickname here before clicking Change."