Yes, some weren't fully deleted, but - IIRC - others were. If I am remembering this right, the first deleted post (Roko's) left comments behind in people's profiles, but with the second deleted post the associated comments were rendered completely inaccessible to everyone. At the time, I figured that the management was getting better at nuking people's posts.

After that - rather curiously - some of my subsequent "marked deleted" posts remained visible to me when logged in - so I wasn't even aware of what had been "marked deleted" to everyone else for most of the time - unless I logged out of the site.