It is not the way to fight spams on blogs, but for professional look for websites, duplicate comments should not be allowed. This feature is common among most popular blogs and forums, so i bring this simple extension to add this feature to BlogEngine.
To enable this extension just upload it to your extension directory under App_Code.
The extension is attached with this post.
ValidateComments.cs (1,014.00 bytes)
b3256a51-a511-4549-a883-c1402d48fbac|2|5.0