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:
What are they going to do when they kill the rest of the olds that contributed and built that site?
My local subreddit replaced the mod during the APIpocalypse and it has turned to next door style whining and bickering. Then there are the also-whining counter whiners, and the shills.