"This still occurs on the artist release listing page, e.g:
http://musicbrainz.org/artist/088aaa61-068e-4347-a542-5f3fb37222bb/releases

(Although you can't see it from that view, none of the releases on that page have just "神凪いつき" as the artist credit)

I'm not sure where exactly you could fit the artist credits on that page, though; it's pretty crowded with all of the other columns..."