This isn’t a common method to prove identity. So far, social media companies have enlisted a number of technologies to verify people’s ages, including using identity-based verification like asking users to upload government-issued IDs; using AI to scan a user’s face; tracking a user’s activity to determine a person’s age; and enlisting parental supervision tools like Instagram, which introduced Teen Accounts to alert parents of any harmful online habits.
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平台体量太小，意味着开发者的投入与收益严重失衡。做一个版本要付出完整的设计、适配和维护成本，却只能换来极少的用户基数。盈利模型也始终模糊，对商业团队来说，这几乎是一笔注定亏本的买卖。于是大厂的态度逐渐变成了「象征性支持」。
记住这个「条件对应法则」，同类题都能快速确定弹出条件，不会写反。