Core Viewpoint - The transition away from 2G networks poses a significant risk to early smart electric vehicles, leading to service disruptions for many consumers who may face unexpected costs for device upgrades [1][3][5]. Group 1: Industry Impact - Approximately 380 million electric bicycles in China are affected by the discontinuation of 2G networks, with many models losing smart services [3]. - The Ministry of Industry and Information Technology had issued a notice in 2020 to phase out 2G/3G networks for new IoT devices, yet many manufacturers continued to release models with 2G modules [3][7]. Group 2: Consumer Experiences - Consumers like Mr. Yang from Hebei have reported that their electric bicycles, purchased in 2021, have become unusable due to the loss of smart features, with repair costs exceeding 400 yuan [5][7]. - Complaints regarding the inability to use remote services have been prevalent on consumer complaint platforms, indicating a widespread issue among users [5]. Group 3: Manufacturer Responses - Different manufacturers have varied responses to the 2G network phase-out, with some offering free upgrades for certain users while others require consumers to share the costs or bear the full expense [7][8]. - A specific motorcycle brand has initiated a service guarantee plan, offering free upgrades for users within the warranty period, while charging 199 yuan for those outside the warranty [7]. Group 4: Legal and Ethical Considerations - Legal experts argue that companies are obligated to inform consumers about potential service disruptions due to network changes and cannot shift the costs of necessary upgrades onto consumers [8][9]. - According to Chinese consumer protection laws, manufacturers must continue to fulfill their contractual obligations and provide remedies for service failures, indicating that the costs of technological upgrades should not be passed on to consumers [9][10].

Core Viewpoint - The rise in consumer interest in nutrition and health has led to the emergence of "pseudo-nutritionists" who exploit this concern, creating anxiety and misleading consumers through deceptive practices [1] Group 1: Establishing Judgment Standards - Consumers should adopt a "qualification first" judgment standard, recognizing that registered nutritionists must meet strict educational, professional, and experience requirements and pass examinations [2] - Various nutritionist qualifications exist in China, such as registered nutritionists, clinical nutritionists, and public nutritionists, each with different certifying bodies [2] - Consumers are advised to choose nutritionists with credentials recognized by authoritative departments and high professional credibility [2] Group 2: Upholding Consumption Bottom Line - Consumers must maintain a "scientific and rational" consumption bottom line, understanding that health foods are not substitutes for medical treatment [3] - "Pseudo-nutritionists" often exaggerate the efficacy of health foods or claim they can prevent or treat diseases [3] - When selecting health foods, consumers should recognize the health food logo and approval number on product packaging and use them according to labels and instructions [3] Group 3: Protecting Consumer Rights - Consumers should opt for legitimate consultation channels, such as hospital nutrition departments and accredited rehabilitation institutions [4] - It is crucial for consumers to retain evidence such as chat records, payment receipts, product packaging, medical records, and test reports for potential rights protection [4] - In cases of rights infringement, consumers should first communicate with the service provider and, if unresolved, can file complaints through consumer protection platforms or market supervision hotlines [4]