(Not sure about the component: User Interface though).

I'm talking about https://musicbrainz.org/user/culinko/subscriptions/ subpages (artist, label, series?). I think it would be awesome if those pages showed more stuff, just like the information that you get when searching. It would be easier to spot the missing basic information of artists or labels. Attaching two example images, first one is the search page, second one is the subscription page. I could see it looking like that (except the Score column).