Problems with Yahoo!
The Yahoo! supported chat client is adware.
Chat rooms are limited to 50 users (?)
Yahoo! protocol only supports participation in 1 chat room at once.
Yahoo! chat not allowed on some WANs
Securing chat rooms from unauthorized access. How? Dealing with chat rooms in general.....
Nobody likes getting Yahoooooo'd!!!!
NWS having to administer the chatroom is tedious