Only trouble I had was for three days last week when it said I had incurred several infractions and was banned and could ony be allowed back at a certain time. They were right though. I logged back in then and everything was ok.
Yes, I thought it a bit strange. Should have taken a screenshot. I can see the title of NSC in my browser history is 'Coming Soon page'. The whole page was white with a tiny bit of text saying 'Coming soon.' or something similar.
Happened a couple of times - I just refreshed the page and it went away.