Hello,
What you can do is use the BlogInfoProvider class to get a reference to the BlogInfo object corresponding to your blog.
You can then use the GetValue method to retrieve a list of moderators by username, separated by semi-colons.
With that information, you can then use UserInfoProvider to retrieve the user's information.
You can find more information in the Kentico API reference which you can download from our
Documentation page.
Regards,
Allen