Sorry, but that's just patently incorrect.
Posts are NOT blocked. I can get to them by going to my responses and clicking on them and getting back to the entry so that I can see the reply. The problem is in HAVING to go through all these steps whereas before, all we had to do was to read the actual response before and click on the popup to get to the response if we chose to reply.
MULTIPLE people started having this issue at the same time. It's NOT a censorship issue on ANY level. It's a bug within their system that is causing this to happen - most likely as the result of a recent system update, as another poster noted.
Now they just have to get around to FIXING the friggin problem!!!!