As of a few minutes ago old.reddit.com now seems to requre logging in to access it.
Shame as it was still the best place to browse for info about some niche interests.
Edit: Seems like they might be testing the change as it is hit or miss at the moment.
Edit: Adding this to My flilters in uBlock Origin seems to fix the issue for the time being:
||reddit.com^$header=referer:
You shouldn’t, you’re teaching them bad behaviors. If you go to Canada and you’re friendly to the Canadians they’ll expect the same from other visitors and will get upset when they’re mistreated and that will curdle their maple syrup and if that happens then they can’t feed their cubs. It’s better to just stay away from Canada.
But where else do cheese curds grow??