From http://bugs.musicbrainz.org/ticket/4803 and http://bugs.musicbrainz.org/ticket/4763

(Seems to have regressed further since then though; as now language is not displayed either; and you can't hover over anything to see language/script)

Take the following examples
http://test.musicbrainz.org/artist/ebf7170c-82b9-49bb-b392-4777c99b231c/releases
http://test.musicbrainz.org/release-group/5f3de964-dce5-3aff-b205-d35052442dab

Several releases look identical here but different only by script. It should be easier to tell them apart.