Core Viewpoint - The incident involving inappropriate advertisements on the "BabyBus Nursery Rhymes" app has raised significant public concern regarding the safety of children's online environments and the responsibilities of app providers [1][2]. Group 1: Incident Overview - Users reported that the "BabyBus Nursery Rhymes" app displayed inappropriate third-party advertisements during startup, which are unsuitable for children [1]. - BabyBus acknowledged the issue, attributing the problem to third-party ad integration, and expressed sincere apologies for the negative impact on user experience [1]. Group 2: Industry Implications - The incident highlights a broader issue within the children's educational app sector, where advertising has become a crucial revenue model, often at the expense of content appropriateness [1]. - There is a growing concern that some platforms prioritize monetization over the safety and well-being of children, allowing inappropriate content to infiltrate children's digital spaces [1]. Group 3: Regulatory and Corporate Responsibilities - Existing laws, such as the Minor Protection Law and the Online Protection Regulations, mandate that children's apps must effectively identify harmful content and protect minors' personal information [2]. - Companies should not only market their products as "children-specific" but also implement higher content standards and stricter management practices, including a dedicated review mechanism for children's advertisements [2]. - Regulatory bodies are encouraged to establish clearer advertising guidelines for children's apps and enhance enforcement to hold non-compliant companies accountable [2]. Group 4: Community Involvement - Establishing convenient reporting channels for parents and the community is essential to encourage collective supervision of children's digital environments [3]. - The digital world for children should not be a "lawless" space driven by commercial interests, as every interaction shapes their values and worldview [3].