I think for BCRF that Mercy are one of most if not the best fitting character since she’s a doctor. I’m pretty sure that Moira was a researching a cure for diseases so she could also be really good as a charity skin.
I think that Ana is also a good character to be one more “pink” fairy - besides, I saw a fan art of her and she looked really great and pink colour matched her well)))
If you’re mad about someone using 1 skin, which is something virtual, I hate to say, but you need more happiness in your life. I hope to see Mercy players rocking with Pink Mercy one day!