Hot answers tagged missing-data
Ah, there were recently some association changes on the main sites and this is a consequence of that. The API is not meant to return association information for Area51 (and Area51 doesn't expose an API itself). This has been fixed; such data is no longer returned.
As Dennis pointed out, there is no owner (effectively) on that question. That the API does not return a displayable "no user" string in these (and related) cases is an acknowledge deficiency which will be rectified in a subsequent version.
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