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

The issue names no files, tests, or entry points. Start by tracing the existing login and question-submission flows, then document the security and identity requirements for anonymous questions. Done means the project has an agreed design for unauthenticated or anonymous identity handling, including abuse and access-control behavior.

Written by the indexing model from the issue text.