The lexically first tag '#' gives an error when clicking on it. The url is https://stackoverflow.com/questions/tagged/# . I think it's because SO thinks you search for an anchor. Anyways which that clearly a bug.

The link above works but when you go through https://stackoverflow.com/tags?tab=name it doesn't (for me).

Edit: The tag has disappeared from the tags page.

  • I have retagged that question from (incorrectly) [#] to [c#]. But the underlying problem still exists though.
    – kennytm
    Aug 10, 2010 at 6:15

1 Answer 1


Actually, it (https://stackoverflow.com/questions/tagged/%23) takes me to the problemz cat, with error:

Incorrect syntax near 'AND'.

The same happens for the (non-existing) [+], [-] and [_] tags; meanwhile, the [:] tag gives a blank page, but I think it is a different problem.

  • How did you know it was Incorrect syntax near 'AND' ? I thought SO wouldn't give up this information. If it did, it'd be like running around and screaming, "We've got an SQL injection hole here!"
    – GSerg
    Aug 9, 2010 at 16:44
  • 1
    @GSerg - it's an html comment in the source for that page.
    – user27414
    Aug 9, 2010 at 16:59
  • Ah. So they are running around then :)
    – GSerg
    Aug 9, 2010 at 17:21

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