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:
Yeah you can run it yourself, of there are some public instances that seem to work well enough. I imagine it’s going to be a long term cat-and-mouse game between reddit and the reddit front ends. Reddit will figure out a way to break them, then the devs will find a workaround. Rince and repeat.
If anyone knows of a similar tool to access Facebook marketplace, I would be very interested.