Update on NYTimes paywall

I posted before on miserly strategies to avoid buying a NYTimes subscription. It now appears to me their paywall is even wimpier than I had originally suspected. When I wrote the earlier post I hadn't yet experienced the paywall (either it wasn't on or I hadn't reached my limit of free articles for the month; I suspect the former). Having played around with it a bit, I've found the following.

If I try to read, for example, the Sidney Lumet obituary (btw, I highly recommend Dog Day Afternoon :-), the browser url bar shows the following when the subscription page has finally loaded:

http://www.nytimes.com/2011/04/10/movies/sidney-lumet-director-of-american-classics-dies-at-86.html?hp&gwh=A8B811D09B0F452C9A3F74E25512D060

If I eliminate all the cruft after "html" so that the url bar reads

http://www.nytimes.com/2011/04/10/movies/sidney-lumet-director-of-american-classics-dies-at-86.html

then reloading lets me read the article for free. This has worked for every article I've tried -- probably 20 or so by now.