Hi There,
Thanks for writing in and sorry for the confusion.
It actually isn't possible for the SEOmoz crawler to access pages that require a user login. I went to those URLs and I was able to access the pages with out be logged in as a user, so they don't require user sign up to access them. Since these pages are linked to by other pages on your site and our crawler is not being blocked from these pages and the pages don't actually require a user to be signed in to access them, we will crawl them. I can't say why Google wouldn't be crawling those pages, but there is definitely nothing in place that would stop our crawler from accessing them.
If you would like to stop our crawler from accessing those pages in the future, you may consider adding a disallow directive in your robots.txt file using the user-agent rogerbot.
I hope this helps. Let me know if you have any other questions.
Chiaryn