Users often think the bot is a real person - a channel Op. If an unknown user messages the bot, the bot would forward that message to a known user or users, or send it to a channel - maybe only the backchan to keep it from becoming a problem from a mistyped channel. 
unknown user: Hey - I need help with something!
bot forwards: [nickname timestamp] Hey - I need help with something!
Config with known users, e.g. nick1,nick2,nick3, etc, or, backchan (must be defined and enabled). 

I would not want user's messages going to Notes - too much typing to read them ;)
Any thoughts on this?