How much traffic does your site serve? I'm not saying that turning the feature on is difficult. Anyone reading hacker news can go and configure their webserver

How much traffic does your site serve? I'm not saying that turning the feature on is difficult. Anyone reading hacker news can go and configure their webserver to start serving this traffic.... but I can tell you that a site serving serious production loads (let's just say 100 qps)... nobody is just "flipping a config" and sending the protocol out the door.