Having read through quite a few of the entries on the Letters of Note website, it's not stated in most instances that the author approved of the private correspondence being released publicly. In many instances it would appear that those private thoughts were either made available by a third party or postumously by the author's family.
And not one member of this site appears to have a moral issue with those pieces of private correspondence being published. Many have lauded it.
In light of the moral high ground many of you assumed last week when a journalist had the audacity to report something that was already released into the public domain -- and was told using GCA.com as a source for further reporting was anything from inappropriate to morally disgraceful -- I'd have thought at least one person might have objected this this (very fine and interesting) website promoting private correspondence released by persons other than the author.