He didn't retract the blog post. He just agreed that the phrase "I confirm as member" was badly worded. He then replied by tweet: "@tomerkantor you are right - that is badly written. I’ve fixed it on the blog." The blog now reads: "I confirm Kleiman was a member of the team." The stuff confirming Craig Wright's claims is still in the blog post.
That whole blog post was weird. He made various assertions with nothing to back them up, and then walked back one of them. Everything he said could be interpreted as being from public sources (which he believes) plus a personal meeting, sans any strong cryptographic proof, with Wright.
