In a blog post by Dave Cross on the Perl conference in Riga there is this...

The second day started with Liz Mattijsen’s keynote DeMythifying Perl 6. I was surprised when she stated that “Perl 6 has damaged Perl 5” was not a myth, but a fact and was totally blown away when she followed that up with a proposal to rename Perl 6.

There seems no reference to this anywhere else.

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