Originally Posted by Almighty So

I had a similar issue once with saying the site was offline.
Not sure if it's the same issue or not but I cleared my cookies and everything worked fine.
See this thread for a screen shot of when I could not access the site.

#/f/showthread.php?t=607066

Also, bump for a mod to answer your question. Not sure how they go about banning people here, wether it's via IP or account, but if you were truly banned I don't think it would as easy as logging in a different device/app.