Nobody is going to send this except for me. I'm mailing it on Monday.
I think the concern that Maxx_ and I had was less that people will steal and send this letter, but more that suddenly a lot of people will copy and write their own letters and send them in bulk.
I certainly hope no one steals this letter, since that it's a complete richardface thing to do, but the idea of others making their own letters (of varying quality) and spamming them at the Greenlight Staff is something that could happen. And I hope it doesn't. It would only sabotage all good letters sent, including this one.
I like the final draft.
No harm can come from sending it, and it can only do nothing or do good.
So, if you're confident and happy with it, I say send it.