It's the same "blocking technology" JWZ uses on his sites.

Easily sidestepped, it's there to make a point I guess: https://www.jwz.org/blog/

No, it isn't.

	▲	defrost 4 hours ago \| parent [-]
		Hmm, having double checked, I can read it if referred via HN, I can read it direct via my ISP, and I can read it direct via a VPN in a couple of global geolocations. That doesn't help you directly, but perhaps that might help tracing your issue. Unless you were running a Ceci n'est pas une pipebomb bit that flew over my addled head ...