Tim, I read your piece with interest - I liked all the quotes. And I loved the letter from the LRB, it reminded me why I must renew my subscription.
But I think you've underplayed what criticism (a review) can do. A good piece of criticism can give us a totally new way of looking at a poem or poet, can help us learn how to read, as it were, and can put a particular work - say, the new book - in context of a writer's oeuvre and in the context of other current writing.
A knowledgeable reviewer can shed light on a piece that even careful reading couldn't have. (Of course, a little knowledge being a dangerous thing, a reviewer can also make unsupported assertions and muddy the water for the unwary reader - there was a kerfuffle last year with a biography of - was it EE Cummings? - which was largely plagiarised - or was it a different book.) (Sorry! If I were reviewing I'd check that.)
I'd have mentioned the importance of RESEARCH - that is, knowing whereof you speak: looking at the author's previous books, or just finding out a bit about them - not just writing a student essay on the book at hand. So many reviews are just jejune , & it makes me heart sink when I see an ignorant reviewer thinking he can bullshit it as if it were an exam!
I know you don't want to put people off, but then again, if someone is going to write reviews they should have a proper respect for the position of authority they're putting themselves into.
Anyway, a working guide to people wanting to get started is a great idea - it's not something I've seen covered before. In the website section at the end you could add
www.cprw.com, which is the Contemporary Poetry Review.
clearly, btw, I know you already gave it out! I think it's great. If you were going to use it again I might make some of these additions.
KEB