There's still plenty of kemono doujinshi uncensored on that site.
Hilariously, if you have an account on doujinshi, you can still see the pictures that were uploaded with it initially if you go to upload more, and you can still upload an image as the cover, it actually looks more as if they weren't censored, but the cover image was deleted on all of them, you could maybe even re-upload ones you know of since it's a mostly freely editable database.
I'm wondering if there was some reason for the censorship beyond an alleged fear of being blacklisted from cons/artists, and if you could bring this to an admin's attention. Considering if he's just censoring all doujin covers with no real reason for it, it's equivalent to database vandalism.
As a test, I'm trying to re-upload the cover of one doujin that has apparently been censored. Now I have to wait for an admin to approve the change, if the change is approved, and the cover is added, then it hasn't been censored, the cover page has merely been deleted and needs to be re-added. I'll post again later if the change is approved/denied.
Unless furryKemono is a mod or something like that there isn't much he should be able to do to stop people from just filling in the content he deleted.