On the first page load, the ads 'defeat' AdBlock Plus 1.3.4 running under Chrome 23.0.1271.97 m. Upon reloading the page, the ads disappear again.
I've also noticed similar behavior on YouTube. Sometimes ads appear in the videos, sometimes they do not.
I have the settings in ABP 'maximized', so I tried uninstalling and reinstalling it, but no dice. I still see the ads on the first page load at GT.
Oh, well, it could be worse.