Actually, this can still be used for spam. My friend did \"!slang 2 Noob\" and a lot of messages starting appearing in the channel and eventually led to Excess Flood.
Could you make it possible on !slang it will do a \".notice $nick\"
And on a @slang it will do a \".msg $chan\"

That would be greatly appreciated, and I say the . before msg/notice as it won\'t flood me, if you didn\'t know that :p