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Is it valid for StackOverflow data to have an answer that does not have an owner? For example if you hit the following API url http://api.stackoverflow.com/1.1/answers/18, it does not bring back an owner. If I look at the quarterly data dump, the OwnerUserId field is null. However if I go to the website and hit the question page (http://stackoverflow.com/questions/17/binary-data-in-mysql) I see a user (PHPGuy) who answered the question, but does not have a hyperlink for that user. Would this be a user who no longer is part of StackOverflow or does it mean something else?

Thanks in advance

Is it valid for Stack Overflow data to have an answer that does not have an owner?

For example if you hit the following API url http://api.stackoverflow.com/1.1/answers/18, it does not bring back an owner. If I look at the quarterly data dump, the OwnerUserId field is null.

However if I go to the website and hit the question page (http://stackoverflow.com/questions/17/binary-data-in-mysql) I see a user (PHPGuy) who answered the question, but does not have a hyperlink for that user.

Would this be a user who no longer is part of Stack Overflow or does it mean something else?

Is it valid for StackOverflow data to have an answer that does not have an owner? For example if you hit the following API url http://api.stackoverflow.com/1.1/answers/18, it does not bring back an owner. If I look at the quarterly data dump, the OwnerUserId field is null. However if I go to the website and hit the question page (http://stackoverflow.com/questions/17/binary-data-in-mysql) I see a user (PHPGuy) who answered the question, but does not have a hyperlink for that user. Would this be a user who no longer is part of StackOverflow or does it mean something else?

Thanks in advance

Chris

Is it valid for StackOverflow data to have an answer that does not have an owner? For example if you hit the following API url http://api.stackoverflow.com/1.1/answers/18, it does not bring back an owner. If I look at the quarterly data dump, the OwnerUserId field is null. However if I go to the website and hit the question page (http://stackoverflow.com/questions/17/binary-data-in-mysql) I see a user (PHPGuy) who answered the question, but does not have a hyperlink for that user. Would this be a user who no longer is part of StackOverflow or does it mean something else?

Thanks in advance