Spicychicken123 scams by saying she has a glitch where she can turn any Rare Headdress into a Light Pink Headdress. She says this at a location with a lot of rare jammers, such as Wootmoo's den. If someone agrees to trade their Rare Headdress in order to get it "glitched", she'll offer an undertrade for it. Once Spicy has the item she wants, she'll block off whoever she scammed.
If accused of scamming, Spicychicken123 will argue that she simply doesn't scam because she's not that kind of person. However, this glitch is both impossible and obviously set up to scam.