It's worth pointing out that when Damian demonstrated to the module to London.pm, it was simply called "Bleach". BackPan confirms that version 1.000 of Bleach.pm was uploaded on 21 Feb 2001. It was only with release 1.012 on 21 May 2001 that it acquired its more recognisable name. So it looks like Acme::Buffy and Acme::Pony both beat it into the Acme namespace.
All of which makes me wonder if Leon had more to do with the invention of the Acme namespace than Damian says above. After all, he's been using the nick "acme" on IRC since well before this all happened :-)