We have strong terms and conditions as well as a team of moderators and administrators to make sure that no illicit or copyrighted material will be on the service the site at any time. There will also be a flagging system for users posting and using the service for illicit content. We have a very strong stance against this and especially the topic that you bring up we personally find it disgusting that this would even be mentioned.
So then you will be able to unencrypt files stored on your service? The encryption keys are known then to anyone logged on as root or user?