I would assume those in the know disconnect their 360s from Online until a new firmware arrives.
Yes it gets them around the problem for a time but M$ are never very mouthy over when the ban wave is coming - in fact I've never read anything about it until its happened and I follow xbox scene and few other sites often.
Even if they do think "oh its about time to get banned, will disconnect and wait for patch" it means we get a bit of them not online
November ish, a big update comes and with it comes the Ban Hammer, its widely reported across the net, so its not exactly a secret, just follow Kotaku.