I do wish you luck with that, but I note that there's another discussion on HN today about why most blogs have turned off comments. Most of the posters agree that bots and spammers are a huge problem that outweighs whatever value they get out of it.<p>Some podcasts I follow have a Facebook page, and make a post about each episode. That lets them use Facebook's systems for moderation, and builds on their existing social media branding.<p>I'm sure it can be improved upon, especially if you can get it incorporated directly into some podcast apps.