While I think that having to change the SSID is a lame solution, the problem with your suggestion is that there's no way to ensure that the person opting the ne

While I think that having to change the SSID is a lame solution, the problem with your suggestion is that there's no way to ensure that the person opting the networks out actually has control over the network; it would take minutes for 4chan or other mischievous people to opt-out whole neighborhoods.