User profile

• [Virtual Expo] I want to unblock someone.
• [Virtual Expo] If I block someone, will they be notified?
• [Virtual Expo] What can I do on my profile page?
• [Virtual Expo] I want to change my User ID.
• [Virtual Expo] I want to change my nickname. How can I change it?
• [Virtual Expo] I cannot proceed due to an error in editing the nickname.