Exactly. The things is that I’m trying to connect WP with Discourse with the plugin and manage the comments of my blog posts with Discourse. But I don’t want Google indexing the entry on Discourse because it would be a duplicate of the Wordpress entry, thinking on SEO of course. So I think the proper way to do this is creating a Category, like ‘Feedback’, on Discourse and adding a nofollow by default to all entries on it.