Were hash algorithms 1 through 11 added to any well known OpenPGP implementation before 2009?
All software would have supported it, and it even would have been possible to manually force GPG into creating a key with those preferences in 2008.
But we already have a key for Satoshi. Everyone knows that it's accurate. It was created on Oct. 30, 2008, and it used the default GPG cipher preferences at the time.
Now we're asked to believe that Satoshi had a secret additional key also created on Oct 30, 2008, but it used the default cipher preferences of today's version of GPG. Why would Satoshi create two keys on the same day with different cipher preferences (one of which is conveniently the default for modern GPG versions), and keep one totally secret? It's theoretically possible, but it makes no sense. By far the most likely explanation is that it was back-dated (easily possible with stock GPG) in order to trick gullible people into believing that this person is Satoshi. The other "evidence" is similarly worthless: Satoshi never used satoshin@vistomail.com (only satoshi@vistomail.com and satoshin@gmx.com), and the blogs were obviously back-dated as well.
I am very disappointed in the community for (largely) being fooled by this obvious imposter.
I won't waste to many words except to say that everything you just typed is not "anti-Proof". You've taken a small sampling of the overwhelming facts, and in the end reduced it to a question mark.... "Why would Satoshi blah blah blah
?" Bottom line is that you don't know how he thinks, or why he might have done what he did, or what possible long term options he may have been considering. So in the end you are simply another equal voice in the crowd - yet with a recognizable name - with nothing but your desire to not believe.