Presales question here: Are the Questions and Answers in custom posts, or in the WP posts and comments tables?
Yes question and answer are custom post, and comments are wp-comments.. only one extra table added is by AnsPress.
Thank you. Can any anti-spam plugin be applied to the questions and answers? Or is the only defense moderation?
I haven’t tried. but AnsPress uses default wordpress system so it can be applied.