These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ensemble Darkhorse: Billy Bunter started life as a minor character and ended up in the title role.
Fair for Its Day: For mass-market childrens' stories of the very early 20th century, both the narrative and protagonists were unusually firm in rejecting racism. Of course, this all comes with a big, big helping of Values Dissonance. Observe:
Harry Wharton (to Fisher T. Fish in a 1910 issue): "But while we're on the subject of Inky, we may as well have it out. Inky isn't a nigger - he's an Indian, which is as unlike a negro as an American is. And if he were a nigger, we should like him just as much, and he would be just as good a sort. And we don't share your ridiculous prejudice against coloured people, and if a nigger ever comes to Greyfriars, and you put on any airs about it, we'll jump on you. Is that quite clear?"