Core Viewpoint - Lei Jun, the founder of Xiaomi, is facing significant criticism and a decline in his fan base, with approximately 300,000 fans lost in the past month, leading him to claim that Xiaomi is one of the most heavily criticized brands online [1] Group 1: Marketing and Public Perception - Various controversies surrounding Xiaomi products have emerged, including issues related to the SU7 vehicle fire incident and the perceived lack of transparency in marketing claims [3] - Users have criticized Xiaomi's marketing strategies, noting exaggerated claims such as "2200 MPa Xiaomi super steel" and "200 km instant stop," which are seen as misleading [5] - The marketing approach has led to a perception that Xiaomi's products do not meet the high expectations set by their promotional materials, resulting in a backlash from consumers [8][12] Group 2: Industry Context and Consumer Behavior - The competitive landscape in China necessitates aggressive marketing strategies for survival and growth, which Xiaomi has adopted [7] - The rapid iteration of products in the domestic market often leads to a focus on speed over quality, resulting in products that may not meet consumer expectations [13] - The importance of sincerity in marketing and product development is emphasized, suggesting that genuine communication is more valuable than exaggerated claims [15]