I can see you are very passionate about Quicksilver and the negative depiction that haunts him. So much so I couldn’t possibly answer each of the other posts you made for the last several pages about it. While it is unfortunate that certain writers have used Pietro as a heel in their stories, I can’t say I agree Wanda and Lorna are intent on making him miserable. Outside of Englehart, Robinson, and Zub, Pietro and Wanda are typically portrayed as being supportive and caring of each other.
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Lorna and Pietro have generally been depicted as having a best friends dynamic, having served on X-Factor and on Genosha in Magneto’s cabinet. A dynamic that developed years before it was revealed they were related. This made them fiercely loyal to each other. The bullying big brother aspect Hopeless and Bunn gave Pietro in Secret Wars: House of M was a wild departure from that, and clearly meant to be part of the villainization of his character. Only a short while before, Pietro was ready to leave the Avengers (and even Wanda!) behind to support Lorna on X-Factor.
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Wanda and Lorna aren’t to blame for certain writer’s treatment of Pietro, or stans bashing him. They’re fictional characters after all, and have been prey to similar character assassination stories to make other, more respected characters look good. It’s something they have in common, and should make their fans more sympathetic with each other. Being toxic to each other in fandom spaces only plays into Marvel’s less than ethical business practice of making money off fan rage and derail threads like this.