Well if you look his posts are all there as Chewie. Just look back through this thread. But if you click his name and look it only shows 5 posts.
I already was ahead of you looking at permissions and all that again; all is fine there.
At least they are not really lost. Let's wait till house keeping over night and see. May be a bug in the software.
I have done this a few times before, but first time anyone has pointed this out, so I am not sure if this is random or what.