There seems to be quite a few images with tags that have been unaccounted for in the tag history and appear to be major tag edits by someone. I came across them while looking at the images tagged omikuji (which most should have been tagged ofuda I think). After looking around I found more such images in the knees and kasugano_sakura tags (and I'm sure there are a lot more). It wouldn't be so bad, except whoever added these unaccounted for tags seemed to throw out any ol' tag without double checking to see if the tags were appropriate, made new tags without seeing if there wasn't already ones existing that could be used, and misspelled a few.

Anyways, as you're tagging images you should be wary of those unaccredited tags, as they'll be accredited to whoever next edits the images that have them.

Here are some examples: post #228278, post #338863, and post #313983.

There was a user I noticed about two months ago, I forgot his username but I think it started with "T", who always did that. We joked on one image that he was going for a "most tags" world record, and I've fixed a few of his images. I don't know why the person wouldn't show up in the tag history, though. Maybe he deleted his account?

The user who added all those tags in every kasugano sakura pics was ECHLIGHT, but albert deleted his tag history instead of undo-ing so its a bit messy, he should fix it soon.

His tag changes have been restored and I've rolled most of them back. It won't work if someone changed the tags after he did.