rubygems/rubygems.org — pull request #532 by 1337807 (2013-02-14 01:27:55+00:00)
Title: Allow User handles to start with numbers.

The regex that validates user handles disallows a starting number, dash or underscore. I aspire to give all numbered users an opportunity to be seen as equals amongst their peers, but I'm happy to continue discriminating against the underscored and dashed.