I don't think an open letter to a dead person is quite the correct thing to do. I can't really explain it, but it feels a bit dirty.
Maybe it's the way we use language.... Aboriginal people in Australia are not allowed to mention a deceased person and especially not use their name.
I guess we also have guidelines of etiquette... I have criticized the Captain of Bounty in many of my posts, but I would never say: Captain X, Listen to me...
The other thing is the writing doesn't offer up an opinion. It just asks questions of the dead person. An opinion is a statement, not a question. Isn't it?
It's place is in the miasma of the original thread.
Sorry... The morass or the original thread. Can you have a miasmatic morass?