It's already dead for me. It used to be the only way I could access random reddit links with my VPN, now it too gives that stupid rejection page.
So, reddit was dead to me, but now it's extra dead to me because I'm not disabling my VPN just to view some link. If friends send me a reddit link, I'll just ask for a screenshot.
Instead of replacing the www with old, you can replace the www. with “safe”.
SafeReddit.com (easiest LibReddit/RedLib mirror to ‘member). While it lasts :-/ (see: Invidious getting hit by limits today, Instagram being hardcore anti-Bibliogram…)