This feature isn't for us. Playing Captain Hindsight and telling a regular user "you shouldn't have opened that suspicious attachment" doesn't get their data ba

This feature isn't for us. Playing Captain Hindsight and telling a regular user "you shouldn't have opened that suspicious attachment" doesn't get their data back. Put simply, a computer is a dangerous tool in inexperienced hands, no different than a table saw or a gun. A user has the ability to do serious damage to themselves, by destroying or leaking personal information; adding a reasonable safety feature that is activated by default is not an infringement of your freedom when you have the ability to disable it trivially. Now, if we're talking the App Store, then I agree with you completely. iOS should behave exactly like Mountain Lion, and if I had my druthers, the level of vendor lock-in they employ on that platform would be considered anti-competitive and illegal. If it turns out that Gatekeeper is merely a stepping stone to similarly walling off the Mac ecosystem, then I suppose I will have to eat my words.