Jumping Jesus on a Pogo Stick No!
I want my ISP doing as little as possible. I want to be able to drown it in a bathtub if I need to. I want out from behind nat and dns-redirections. I want symmetric connectivity and a modem that works like a goddamn switch and doesn't need some fake ass install disk to get connected. The last thing I want is my ISP "managing" connections or getting used to the feeling of managing connections. That includes throwing other jackasses off their networks for being part of a bot net. Especially if the ISPs are the ones determining what a bot net is. Decentralized command and control sounds a lot like onion routing networks, bit torrent clouds, and irc. I'm "A Big Fan" of all three, and there is no way ISPs won't abuse this power. This isn't a public safety issue, this isn't a push for something sane like QOS, this is a big fat fucking power grab based on fear uncertainty and doubt. So no, sweet jesus no.
P.S: Stop being a pussy and setup a Tor exit node. You can limit the destinations to a white list, so theres pretty much no reason not to.