There are no tags that are avoid_posting
I was trying to correct this picture's character, it's supposed to be fuyuki_yamamoto_(odd_taxi), but I mistakenly copied it without the _, so it added a bunch of garbage which I tried to revert. I think it ended up adding a old tag that was excluded or some artist that's avoid posting, I dunno(I think yamamoto). I undid it but the avoid_posting still exists. Tried removing it but it doesn't gets removed. Either bug or by design, perhaps if a tag that was avoid_posting was added in the past then it might be still forcing it?