https://www.furaffinity.net/user/nathradas/ is now "User "Nathradas" has voluntarily disabled access to their account ...".
Nathradas's FA galleries now "disabled access ", but individual posts still viewable:

• Main gallery
• latest post: https://www.furaffinity.net/view/12148495/ "posted Nov 25, 2013"
• earliest post: https://www.furaffinity.net/view/6960608/ "posted Dec 2, 2011"
• Scraps gallery:
• apparently only ONE post in scraps: https://www.furaffinity.net/view/10450386/ "posted Apr 25, 2013"

(Nathradas Tumblr seems to be cybersquatted)