I was playing around on FICS, and one thing I noticed that 'it' type shouts weren't captured by 'shouts' in the chatbox. Little annoying watching people get around my lovely filter and cluttering up my console window.
But then i guess sending said 'it' shouts would be cumbersome as the box would be ambiguous in its output. Id hate to have to slave another chatbox just for 'it' shouts as people tend to use them interchangeably... Perhaps to send an it shout in the chat box just type "it message" like you would in console to differentiate between that and a normal shout.