Qian Jiangyue didn't actually care about what these people were thinking.
Because thoughts alone can't change the real world, if it was so then every country's leader would be nothing but a philosopher.
What mattered was whether or not these 'madmen' were capable of taking actions that aligned with their thoughts.
If they were, then contact with them would be extremely dangerous.
Before interacting with them, Qian Jiangyue wouldn't know whether he might be used as a tool for them to achieve their objectives.
Take Wen Chengzhi for example.
Actually, in the eyes of ordinary people, Qian Jiangyue himself was considered a 'freak', and in certain circumstances, a 'madman'. But he was able to grasp the boundary between reality and illusion.
He could maintain a balance between the two.
At least, for the time being.
Once he understood this, Qian Jiangyue didn't try to make any more contact with the suddenly-appeared room.