Okay. Reading the documentation again I can see that I have to buy a Developer membership (or a single template).
The only place where I could find understandable information was with a mouse over on the "share" option on the member page.
Reading the FAQ "What Constitutes ‘Unauthorized Use’ Of Your Templates?" just makes me more confused;
"Unauthorized use includes any of the following: copying, distributing, or offering any of Youjoomla Proprietary license restricted files ( see license in footer ) for resale without prior written approval. We also prohibit the copying of our products to any other medium,
including (but not limited to) CD, DVD, Floppy, or thumb drive."
The share hover over text:
If you choose to sign up for our developer membership, we allow you to use our templates and extensions for your friends and clients. However this does not grant you the privilege to publicly post our products for download on any domain or download/file/share/email services. For all other memberships, we only allow use of our products on your own personal web sites. Any violation of this policy may result in the immediate suspension of your membership.