WG adoption threads

I've been watching several "WG adoption" threads since Prague,
and I have a question.

Is it useful for authors of a draft to send messages saying things
like "I support the adoption of this draft as a WG document." ?

I'm not asking whether it's right or wrong, just whether such
a message helps the WG Chairs in evaluating consensus.

(I see similar messages from non-authors, and I am definitely
doubtful about them unless they start with something like "I have
read this draft and...".)

   Brian