Board Thread:Questions and Answers/@comment-26109599-20150807114313/@comment-5276866-20150807204427

It sounds like you've been banned. Temporarily or permanently, I don't know. For a while I was making a bunch of alternate accounts to use hacks with just to troll NK, and I got that second problem you described (make a new account, log out, then try to log in, and it's suddenly banned). If you make a new account, try a different email. I was using the same 10-minute email site and always ended up with almost-instantly-banned accounts, but then I tried a different 10-minute email site for one and a fake Gmail for the other, and they weren't insta-banned.

Keep on trollin'.