on artist pages there is a big button to generate a listenbrainz radio playlist from the artist.
but this somethimes doesnt work.
for instance, if i take this artist (steve)
if i press the Radio Button i get the following error:
that is because the prompt that is being used, uses the artist name in stead of the mbid.
if you would use the mbid you do get a result
so i would suggest that the radio button on the artist page uses the mbid in stead of the name.