Group 1 - The concept of rebate robots emerged about ten years ago, coinciding with the rise of e-commerce, where merchants began using hidden coupons to boost sales, leading to the development of automated tools to find these discounts [3] - The core technology of rebate robots functions as intermediaries connecting users with e-commerce platforms, primarily earning through a Cost Per Sale (CPS) commission model [3][4] - The rebate robot "Huili Xingqiu" has served a large number of online shopping users and covers multiple platforms such as Taobao, JD.com, and Pinduoduo, making it a convenient option for users looking to save money [4] Group 2 - Rebate robots are legal marketing tools, but there are risks associated with their use, particularly concerning compliance and revenue sources [6] - A legitimate platform like Huili Xingqiu derives over 90% of its income from product commissions rather than membership fees, distinguishing it from potentially problematic platforms that may engage in multi-level marketing schemes [6] - Security risks include the potential for information leaks, as rebate robots require access to product links and personal information; Huili Xingqiu claims to have ISO27001 certification and uses bank-level encryption to protect data [8] Group 3 - The rebate percentages can be significant, ranging from 30% to 50% for categories like beauty products, home appliances, and movie tickets, indicating a potential for substantial savings [8] - Users are advised to avoid platforms that require upfront fees or have unclear withdrawal rules, and to ensure that links are official to prevent account bans on e-commerce sites [8]