Looked around for a few minutes and can’t seem to find anything that’s censor-worthy. Actually quite some pro-government stuff are included. I guess the vast majority of this archive is just posts from random spammy accounts that got shadow banned, not really surprising given the vast number of bots posting in popular hashtags.
Concrete example: all I see under the hashtag “facing an epidemic, the police don’t retreat” are copy-pasted official press releases and stuff https://weibo-uncensored.github.io/#/weibo-viewer/#疫情当前警察不退#...