When I logged into Stack Exchange Data Explorer for the first time today using my normal Stack Exchange Open ID I was given the display name Jon.Doe8551. There are indeed 66 pages of Jon.Does on SEDE, why is that?

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    @ben not a dupe, this one was caused by duplicate display name as Rory explained below. On second thought maybe it's better to close as dupe but add another answer there? May 19, 2013 at 13:02
  • I don't suppose it matters @Sha, whatever the reason I think it's answered there, this question has "logged into Stack Exchange Data Explorer for the first time today" and Waffles answered "As it stands data.se tries to guess a login for you from your openid provider, if it fails it assigns you a unique jon.doe login." The fact that the OP tried to change their display name seems irrelevant? Or possibly I'm being stupid (wouldn't surprise me). May 19, 2013 at 13:06
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    @ben the login was correct, but something else failed (e.g. "duplicate key isn't allowed" .NET error) which caused the fallback to default name. May 19, 2013 at 13:08

1 Answer 1


When attempting to change my display name on the site, I was presented with an error stating that on the Data Explorer all usernames need to be unique. I assume that everyone who attempts to associate with a username that is already in the system is assigned the next available Jon Doe name.

  • I have no idea why this is, actually. I'll look into removing the requirement if there doesn't seem to be a good reason for it.
    – Tim Stone
    May 19, 2013 at 13:07
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    @Tim good intention, but keep in mind that even if you fix it, long months (years?) might pass before the fix is deployed. I start to believe the team has abandoned Data Explorer altogether from the complete lack of response. May 19, 2013 at 13:09
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    @ShaWizDowArd Well, I'm slightly more optimistic than that :P
    – Tim Stone
    May 19, 2013 at 13:10
  • @TimStone your judgement is simply clouded by your recent increase in status. Those moderator privileges might simply have induced a power trip. :)
    – Bart
    May 19, 2013 at 13:15
  • @ShaWizDowArd There are a lot of changes waiting in the Data Explorer repo at this point and we simply haven't had the time to go through and vet them. I keep asking Nick about it periodically, but he's been busy with other work.
    – Adam Lear StaffMod
    May 19, 2013 at 18:04
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    @Anna I was under the impression that Tim already made all the changes and only need a dev to push a button... didn't know it requires more dev time than that. Thanks, maybe it's worth adding as answer here? Not too late to get the bounty! :-) May 19, 2013 at 20:24
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    @Anna What, you don't trust me? ;) (As an aside, a large portion of the pending changes don't impact the hosted SEDE)
    – Tim Stone
    May 19, 2013 at 22:41

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