[chrishajer]

There was a plugin that allowed you to extend the user profile, but it’s very old and I would be surprised if it still worked. You could use something like that to allow people to add their blog URL to their profile. You could also probably figure out how to display their feed in their profile as well once you enable them to add that URL to their profile.

https://bbpress.org/forums/topic/plugin-allow-additional-or-custom-profile-fields