Based on the question posted at http://wikimediafoundation.org/wiki/Talk:Terms_of_Use/Phabricator
User profile images
What's about avatars. Users technically may upload unfree pics as such. I assume they're to be prohibited. Does general licensing policy apply here or an additional thing's to be created? --Base (talk) 18:39, 8 November 2014 (UTC)
In addition to the non-free case, we should also consider the offensive case. I don't think the admins would have clear instructions in the current Terms of Use if anything like this happens.