Encouraging positive contributions to your project
To build a positive environment for contributors and manage the community around your project, you can block and unblock a user from your personal account and lock conversations within issues and pull requests.
Limiting interactions in your repository
People with owner or admin access can temporarily restrict certain users from commenting, opening issues, or creating pull requests in your public repository to enforce a period of limited activity.
Blocking a user from your personal account
You can block a user to deny them access to your activity and repositories, and to prevent them from sending you notifications.
Viewing users you've blocked from your personal account
You can view a list of all users you've blocked from your personal account.
Unblocking a user from your personal account
If you've mended fences with a GitHub user you've blocked, you can unblock their account.
Reporting abuse or spam
You can report behavior and content that violates GitHub's Community Guidelines or Terms of Service to GitHub Support or GitHub Premium Support.