Users can leave comments on OSF projects and files. Commenting can be configured to allow only project contributors to comment or to allow any OSF user to comment.
To configure who can leave comments on your project, first go to the project or component, and click the Settings tab in the project's navigation bar.
The "Settings" page will appear.
Click Commenting in the left sidebar, then choose who can comment on your project.
By default, commenting is configured so that any OSF user can post comments on public projects.
Click the Save button when you're finished configuring commenting settings.