Not just the good guys...
...but the bad guys would be able to hide themselves. When it comes down to it, only a tiny fraction of us believe in total freedom of speech. Whether it's terrorists, kiddie pornographers, cyber thieves or what have you, the great majority of us believe that there really is evil on line. So I reluctantly have to agree with the skeptics. It won't just be China doing it's usual behind-closed-doors extortion. It will be the governments of the liberal democracies as well that will cut this off.