This almost reminds me of what happened to Jinx from pokemon. But Jinx was made and given life by someone ells and the changes were so minor it wasn't a big deal. But while Derpy was a "Derp" on an artists end we the fans gave her life, a name, a personality even. We have made a connection with her. They no nothing about Derpy and just see what they want to see. Its something they will learn they cant undo without Resistance.