I mean, I like ZUN and all, but I don't see how this or those two other pictures of him (eating burger and drinking beer) belong on danbooru.
Well, we also have a post were Zun is transporting some of his bear I guess (post #137719). Pretty old stuff, though, but I can kinda understand why these photos are uploaded. It's not like there aren't photos of real cosplayers on Danbooru (like post #2370585).
Like I said: To me, this photo looks more blurry. I'd approve it if it weren't for that flaw :/.
The only reason for this photo / image I can think of, in order to approve this post, is the fact that it spawned a few actual artwork like post #2413182 or see this tweet
So this post will serve as 'Origin' which can be linked using the parent/child feature. This way people can understand the Ringo from post #2413182
If there wouldn't be any artwork of this photo, then this post should be deleted indeed.