I should add, that even though Wolf claims not to talk during chazaraz hashatz, he is then guilty of not answering amen, and kedusha. Shver tzu zein Wolf.
I do answer amen, etc. Since that is *required* speaking, it is obvious that it is allowed. The talking I do during laining is not required — it is completely my option to do it or not do it — and, as such, I am responsible for any punishments that my shul wishes to mete out to me on account of it.
The Wolf