I couldn’t seem to find in the admin section how to mass close posts for commenting. When spam gets past Akismet it’s usually for a really old post. So I looked in the database and made the change by hand
UPDATE wp_posts SET comment_status = 'closed' WHERE ID < 283;
**UPDATE** Heh, right after I posted this, I got some ping spam...
UPDATE wp_posts SET ping_status = 'closed' WHERE ID < 283;
