Your vistors can leave comments on both galleries and individual photos.
No Comments, Please
Gallery owners who are logged in can enable or disable comments in their Customize Gallery settings?.
Managing Comments
In the Stats tab of your Control Panel, you will find how many comments you have received total, in the last 24 hours, and if any are awaiting your approval?. Clicking on a number will take you to an index of those comments.
Comment Spam
If you have problems with inappropriate comments of any type, you can turn on comment approval. With this enabled, no comment will appear publicly until you approve it. To enable this feature, simply check the box on the comment index page?.
Email Notification
You can receive email notifications anytime a new comment is posted on your site. Here's how: Go to your Control Panel, click the Settings tab, and then click the change link next to the words "mail preferences". You will find comment notifications on that page.