The new Create Multiple Users page has a back-end that gives information on all sorts of errors:

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on 2008-07-23-Wed at 21:09 and is filed under DrProject, Uncategorized.
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2008-07-24-Thu at 11:54
I like the username :-)
Maybe you should be more explicit about whether the one line that was formatted correctly processed or not. “Your request could not be processed due to the following errors:” if it doesn’t process, for example. Or does it process? I’d have to check.
2008-07-24-Thu at 15:44
The user name at the top right was hacked using Firebug. The main content width was hacked from 80% to a full 100% using Firebug as well.
2008-07-28-Mon at 09:21
[...] Qiyu Zhu is producing useful error reports. [...]