anonymous questions

I'm always frustrated when my friend wants to ask anonymously,Because you always need to log in to your account to ask questions.

If possible, I hope to add the function of asking questions without logging in

Or add an anonymous login function, all users who log in anonymously use the same id to ask questions

该 issue 未提及任何文件、测试或入口点。首先跟踪现有的登录和提交问题流程，然后记录匿名问题的安全和身份要求。当项目针对未认证或匿名身份的处理（包括滥用行为和访问控制）形成了一个达成共识的设计时，即视为完成。

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