Hmmm, let me get this straight:
You use "ulx messagemode <stuff here>:, and next time you say something, it runs it as a console command "<stuff here> <what you said>"?
In true command format, it would be "ulx messagemode ulx maul;say Megiddo", to pass "ulx maul Megiddo" to the console and maul Megiddo?
Are there any applications for this besides shaving off the few seconds it takes to type "!maul " in the chat window? (I'm assuming you'd bind a button to "ulx messagemode ulx maul", then just quickly say a name.)