It's not opt-in for existing customers. At some point they will be presented with a screen that forces them to make a choice. If you think that all mistakes w

It's not opt-in for existing customers. At some point they will be presented with a screen that forces them to make a choice. If you think that all mistakes with the blocker will be ironed out, then you don't have any idea how large the internet is. This is a problem that is so ingrained with automated filters that it has its own name - the Scunthorpe Problem - http://en.wikipedia.org/wiki/Scunthorpe_problem http://en.wikipedia.org/wiki/Scunthorpe_problem It is an inevitable consequence of this sort of system. Innocent sites will continue to be blocked. As for your other point - it's pure conjecture. Furthermore, it will not stop kids accessing porn. When I was a kid we used to swap dirty magazines. Now they will be swapping memory sticks. And those are the ones who don't take 2 minutes to go to google to search for a way to get around the filter. For all the other ones it's business as usual. The whole thing is a farce, designed to appeal to the Daily Mail / Think of the Children subset of noise-makers, while completely burying any hope of a rational debate.