Event alerts on IRC? Check. Popular clients integrate with it? Check. Single Sign on? Check. Non-technical user? They sign in, they type, they see what other

Event alerts on IRC? Check. Popular clients integrate with it? Check. Single Sign on? Check. Non-technical user? They sign in, they type, they see what others type. What's not to understand? The only thing you mentioned that IRC doesn't have is automated contact list sharing.