NYTimes is keeping analytics on pay-wall hacks.

It's interesting, they're even checking for what kind of hack is being used:

  function checkGateway(){
    var overlay = document.getElementById("overlay");
    if (typeof fulltext !== "undefined") {
      notify("NYTClean");
    } else if (!overlay || overlay.style.display == "none") {
      notify("PaywallSmasher");
    } else {
      setTimeout(checkGateway, 1000);
    }
  }
  
  function notify(typeOfHack){
    if (NYTD.UPTracker && typeof NYTD.UPTracker.track === "function") {
      NYTD.UPTracker.track({
        eventType : "domHack",
        baseUrl : "//up.nytimes.com/?",
        data : {
          type : typeOfHack
        }
      });
    }
  }

The easiest hack: just clear your browser cache when you close your browser.

I've read way more than 20 articles in the past 2 days, all of them accessed from the NYT homepage itself. Whatever it is that they're "doing", it clearly can't overcome privacy settings that prevent permanent cookies.