Enable file comments
Show Comments on the download page. Signed-in users can post. Defaults off. Separate from folder comments.
Enable file comments
Show a Comments section on the public download page. Signed-in users can post; anyone who can see the page can read.
Where to find it
Admin → Settings → Files → Public download page → Enable file comments
Setting key: toggle.efc (defaults off)
Separate from Public folder comments.
Common problems
Spam flood
Turn on Captcha on comments, use Bad comment words filter, and moderate under Admin → Comments.