These characters have continuously evolved throughout their existence. Things that they casually thought or did forty or fifty years ago and were casually accepted by fans back then would not be so today. To cite a well-known example from a parallel medium, Superman notoriously mindwiped Lois Lane in the denouement of SUPERMAN II back in 1981. Nobody I knew (including me) considered it odd at the time; it was just something that we assumed superheroes did from time to time. Today, our sensibilities are different and we look back at that scene through different eyes.
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