>>79618296In the bronze age he was still relevant, Batgirl's first enemy remember?
With the start of the Dark Age writers thought it would be SO FUNNY to pick forgotten villains and make clowns out of them or Worf them (it even happened to Mr. Freeze before TAS) instead of finding new ways to make them interesting, because that would actually require thinking.
Unfortunately it still goes on to this day, with Briand "Brian?" Bendis being the major culprit.