it seems to me that chromatic is a bit unfair in publishing drafts, because the word draft itself does not describe a finished product. how can you publish some book that noone can get anything from ? so suppose you're a client and you buy chromatic's book. it's a draft ! it does not describe a product, it describes a pre-production-ready early early version of Perl6 which is usable just about nowhere at the time being(although it's a nice language). I believe he's exploiting a market that doesn't exist because he exploits it much much too early.
Apparently Perl6 is very spoiled, it has specification waaaay before implementation, it has books waaaay before completion or a production-ready version. it exists on all blogs and people are talking about it yet it's not yet robust. It has advocates and people promoting it, although if someone were to really use Perl6 he wouldn't be able since it's not yet complete. Everything in Perl6 is extremely early.