Naturally, we do not discuss details of individual users. This is indeed an unusual suspension. Also note that this is a network-wide suspension, so this is not necessarily related to this user's behavior on MathOverflow.


It's quite difficult to give an answer to your question. (At least to the part about reinstating the question ban after a positively received question.) One thing is that the algorithm for determining question ban is not public. But you also omitted quite a lot of details in your question: What exactly was the the error message you get? At the time of the ...

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