Questions can be protected.
- What does it mean for a question to be protected?
- Who can protect a question?
- Who can answer a protected question?
- When should I protect or unprotect a question?
What does it mean for a question to be protected?
Protected questions have the additional restriction that new users are not permitted to answer the question. Unlike locked questions, they can still be edited, commented on, and voted on. You can even vote to close them.
Why are some questions protected?
Some questions are protected because they are expected to attract either spam or users -- often new users -- who may mistake the site as a traditional forum, posting "noisy" answers such as "Thank you" or "This worked for me" or "I'm also having this problem".
Who can protect and unprotect questions?
Who can answer a protected question?
Users with 10 or more reputation can answer a protected question. However, the +100 account association bonus is ignored for this check, so you must have earned 10 or more reputation on that specific site to answer a protected question.
The reasoning about this reputation limit discussed in Allow people to answer protected questions if they have earned at least some amount of combined SE rep
When should I protect or unprotect a question?
Thank you for your interest in this question.
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
Would you like to answer one of these unanswered questions instead?