Yup.
Their copyright agreement...
By posting content on the Website, you grant us a royalty-free, worldwide, perpetual and non-exclusive license to host, copy, post and distribute such content.
All content posted on the Website, except for user-submitted content, is owned by us or by third parties who granted us a limited license in respect of such content.
Makes me squirm when I read that stuff, so I just don't go there.