Overall, I think you handled this well, but...

> Our goal is to be 100% transparent with everything we do at Posterous, especially when it affects your blog and content.

I'm sure users will be forgiving, but your credibility may be blown (re: transparency) by not announcing something like this. Why is it so trendy to be 'transparent'? Why claim to adhere to principles that you clearly didn't follow?

(Sorry to nitpick! <3)