I can't post a question when logged in via OpenID on Stack Overflow. How can I do it?
This error message means that you've been asking poorly written and researched questions, so we don't want any more questions from you.
This is a permanent ban. It not only blocks your account, but also the IP address you were using. To prevent bypassing the filter, its exact details are not public. It is partly based on downvotes, and downvotes on deleted questions are also taken into account. (An account with a high public reputation might very well have many deleted questions, including auto-deleted old low-score questions, all of which are only visible to moderators.)