chnm/thatcamp-registrations — pull request #34 by boonebgorges (2012-02-23 16:52:38+00:00)
Title: Fix for #32

It looks like your issue #32 is not caused by my recent changes - it's a coincidence that you found it now.

Your guess that it's caused by people using similar email addresses is correct. The plugin is set up to create users with user_logins that are generated from the part of the email address before the @. There was nothing built into the plugin that checked for duplicates, and when attempt to create a duplicate user, WP spits out an error, and the plugin was not set up to check for these errors.

I added a little logic to do numeric iteration. If amandafrench is taken, try amandafrench1; if that's taken, try amandafrench2; and so on.

I should note that I'm not 100% sure that this is the extent of the problem and solution. However, it does fix the specified issue. Please give it a go and let me know what you find out.