>>109917717There are reasons Hank Pym fans may dislike her for the way most writers treated her as blameless for the failure of their marriage and his nervous breakdowns, and Byrne's West Coast Avengers gives fans of Wanda & Vision reasons to dislike her, she was Byrne's mouthpiece for dehumanizing Vision and shipping Wanda/Wonderman.
But neither of those things explain the widespread hatred of her by readers and writers.