You were right. I believe using children as human confederates could provide better discrimination than restricted topics. Because without general knowledge understanding, knowledge in restricted topics can not be really understood.
When no chatbot can really understand the conversation, the only way is cheating the human chatter.
We should not forget why we want computers chat with human. We expect computers to help us to solve real problems, not only play text game with us.
Hugh Loebner - Jun 15, 2013:
Sometime before the first LP, when the committee was developing the rules, I suggested using children as human confederates (This would have been in the late 1980’s.)
The idea was quickly shot down, and they used restricted topics instead.