Write only space in Alfresco

Ok, I needed a write-only space for the Alfresco that we were managing for a client. This is what I did. Before you read further, read this http://forums.alfresco.com/en/viewtopic.php?f=4&t=7156

Go to your Alfresco install folder
1. Edit tomcat/webapps/alfresco/WEB-INF/classes/alfresco/model/permissionDefinitions.xml
2. Look for permission group Contributor
3. Remove Consumer and ReadPermissions
4. Save file and quit
5. Restart Alfresco (I did this. May be not needed)
6. Create two users: user1 and user2
7. Create a folder in user1 and remove inheriting access. Make user2 a contributor to it and user1 a collaborator
8. Create another folder in user2 and add a workflow to move content to the folder created in last step

Thats it. Done!