My "favorite", and likely related, part of Apple News is that if I have blocked a source because it is unreliable, heavily biased, etc., and a story from that source appears in the main timeline, Apple News shows a greyed out version of the story--headline and image visible--with "You have blocked this publication" (or similar). You can still clearly see the story, so it's not blocked at all.

I assume this comes down to some sort of distribution agreement, but, as bad as the ads are, this single behavior is the reason I stopped using Apple News and continue searching for a successor.