From /u/badooga1

https://np.reddit.com/r/marxism_201/comments/goyxth/z/fs6gs2r

Damn, that's unfortunate.

Something worth noting, though: as long as r/marxism_101 isn't made private, it is possible to view all of its removed content. First, all of the (now-removed, but still readable) posts still seem to be indexed by Google, so those with specific queries can use that. But more importantly, a snapshot of the subreddit can be directly found on Ceddit at the following URL: https://ceddit.com/r/marxism_101/. It takes a while for the page to load, but it all seems to be there.

Unfortunately, r/googoogahgah being private means that neither of these methods will work for it.

As you are the sole moderator of /r/Ultraleft, maybe you could share this method with everyone there for the purpose of data preservation. Hope this helps.