When a poster has been instructed to leave the thread, the poster should not be pinged because he cannot reply.
But I may not know that the poster was sidelined. On a threead like this I normally do not read every comment. Once I know, I would try not to egg him or her on, but it is also a question of responding to some serious matter that poster may have raised.
What I find interesting is that while I was suspended twice for posting to a thread I started, a Romanist who was asked to leave the very same thread still continues to post with immunity.
Why is that?