Well, I can confirm that, after several days and reboots without ccleaner monitoring popping up as the result of doing what I described previously, it suddenly, spontaneously popped up again this morning. In other words, that we can't disable this, um, "option" seems quite deliberate. CCleaner will check, too, to make sure monitor is running.
What a great way to burn through a lot of positive user capital. I hate it when companies do this sort of thing. Not only does it remind us that there's been a sudden shift to some kind of cash focus (oh, those shiny $$ signs!), but it sure looks like somebody wants to do something that most people wouldn't approve of if they knew. I mean, it just looks really creepy.