Reason: Appears to be a circle->artist thing. All the doujin releases I've seen are labeled with the former, but all the pics here and on another site or two use the latter.
Was the former ever in use here? If not, I'd like to leave it open but if it was previously in use and someone just moved them already, then I can alias it.
I don't think so, but since "kokikko" was appearing on some of the doujin pages, I thought a pre-emptive strike against the confusion would be a good idea. I nearly mass-edited "art:kokikko" onto the pages of a doujin pool before a little research uncovered the right name.