I see a lot of people using the excerpt. The issue with that for me, is many people are Forum first members. So if using the full post option, perhaps there is a way to no-index the forum or wordpress texts and comments.
Now, beyond just the post itself, you've got duplicated replies to the article which appear on both the forum and wordpress. At the minimum, I'd say the option to no-index this stuff on the blog side would be a good idea. I'm not sure how that relates to SEO by disconnecting the comments to a post and basically splitting them across a domain, but if you want to avoid duplicated content, I think some kind of no-index feature would be good.
Now, beyond just the post itself, you've got duplicated replies to the article which appear on both the forum and wordpress. At the minimum, I'd say the option to no-index this stuff on the blog side would be a good idea. I'm not sure how that relates to SEO by disconnecting the comments to a post and basically splitting them across a domain, but if you want to avoid duplicated content, I think some kind of no-index feature would be good.