If your account posts content that contains illegal content, spam ads, unfriendly remarks, etc., you will be banned in accordance with Zhihu community standards. You can go to the "Message" button in the upper right corner of the mobile client/App → "System Message", or open the Station Service Center - Violation Records to view the reasons for account violation handling.

If you have objections to the handling, click "I want to appeal" to submit your appeal information. Follow the guidance on the appeal page, fill in the specific reasons for appeal and submit. Generally within 1 to 2 working days, the review specialist will complete the investigation based on the appeal information you provided, and the system will push you a message notification of the appeal results. You can also see the results in the "Violation Records";

If the appeal is successful, the normal display of the content will be restored for you, and the account's banned status will also be lifted.

If the account violates Zhihu community standards and the violation is true, we are very sorry and do not support unblocking. The system will automatically ban the current account based on the severity of the violation and historical violation handling.

The above is all about how to appeal on Zhihu. I hope it will be helpful to you!