Group 1 - The core issue revolves around the quality complaints regarding celebrity brands, specifically the GOODBAI brand founded by Bai Jingting, which has faced criticism for product defects [3] - GOODBAI was established in 2021, with Bai Jingting holding a 41% stake and designer Shang Guanzhe holding 29% [3] - Previous quality issues were reported, including a non-compliance incident involving a denim jacket that failed to meet pH standards, leading to a product recall [3] Group 2 - The DANGEROUS PEOPLE brand, created by singer Xue Zhiqian, also faced scrutiny for substandard down jackets, prompting a refund policy for affected consumers [4] - U.G.C, a brand by Lu Han, received negative feedback regarding the quality of its products, with consumers questioning the high price of 1500 yuan [4] - Another brand, nabi by Ouyang Nana, was criticized for overpriced items, such as a bathrobe priced at 988 yuan, which was deemed excessively expensive by consumers [4]