I'm sorry but there has to be a continuity in storytelling to keep "continuing readers/viewers" because the story "continues" to build a bigger picture month by month for existing fans. Learning more is what keeps fans interested in their favorite comic/tv show and it angers some of us when some writer undoes everything we've learned after years of devotion. But I agree with you Krypton King continuity should'nt hold writers back, although the best writers always seem to keep those stories that are hard to define (as to where they fit into continuity) ambiguous to continuity. Their stories always seem able to fit anywhere they want in the timeline/continuity. And to those idiots that say Trinity is out of continuity don't know anything because it is in continuity. Trinity is the post-crisis, post-zero hour First meeting of Superman, Wonder Woman, and Batman! Legends is before Zero Hour in the DC continuity!
