I just found out how to detour the blocking without using old.reddit.com. All you have to do is make a cookie following the next rules:
- domain: .reddit.com
- name: reddit_session
- value: any value as you want. It supposed to have your Reddit session data, but it can be anything just to detour the blocking. e.g., 0
- path: /
I used cookiebro extension to import and export a cookie but how to add a cookie is up to you. It is naive but it works anyway. I hope it helps, and they don't block this solution too soon.
Or maybe you can use the cookiebro-cookie-.reddit.com-reddit_session.json which I confirmed working on firefox and chromium.