Clarification about redports.org

[Fernando Apesteguía]

Hi there,

I just created an account at redports.org. While reading the user
guide, I found the following paragraph:

"Notice: All ports in your repository replace the complete directory
of the official ports whenever you build a port."

I don't know if I understood correctly. Does it _really_ mean the
directory of the official ports? The one users update for instance
executing "freebsd-update fetch udpate"?