According to what Google shows one the newsgroup comp.lang.c++.moderated the last post is almost a year old now (it is from 23th May 2016).
I wrote a post myself almost a week ago and it wasn't published so far.
At the same time newsgroup comp.lang.c++ is still active (with posts from today).
Is the comp.lang.c++.moderated officially closed now? Is there any replacement for it (other than comp.lang.c++)?
As suggested by jotik in comments to the question I asked the same question on comp.lang.c++: https://groups.google.com/forum/#!topic/comp.lang.c++/OGoy0g1IdmQ
From answers there it seems that *.moderated groups in general are kind of closed as the moderation framework failed.