Exclude some dirs from site backups or backup GS only

[zencoder]

You shouldn't have other directories in-side the GS home.

But I can`t! I have external (google, forums, etc...) links to my files in root or its subdirs which I must preserve.
Developer exactly know GS directories, and backup procedure must backup only this GS files and down to its subdirs. As for any other dirs - user must have an ability to add them to the GS-system backup. It is common practice
Just imagine: I want to backup my folder Documents and Settings from disk C:, but backup procceed entire disc C - ))))