Query over PZ

Anonymous User had a question over PZ's politics. PZ has posted to the list and thus has, I believe, his address available to list subscribers. How did PZ answer the question privately when Anonymous User posed the question to PZ on private e-mail? If Anonymous User did not first pose the question to PZ privately, why did he post it to the list publically? -- tallpaul PS: I'm likely to have some followup on these questions, but wanted to pose them to AU first.