Given that previous post was from over a year ago, it's possible he was presented with information that changed his mind. Which is exactly what he goes into detail about in his speech.

Everyone reserves the right to change their mind if compelling information or evidence is presented.  

Otherwise we'd always be stuck where we've always been.

I wouldn't be a bitcoiner today if I hadn't learned to change my mind when presented with compelling evidence.

I think most of us can say the same.