Maybe more of an email list than an RSS feed then? You can control who is a member of the list to receive content. It would be cool if social media could be done through email, sort of like Usenet.
I have noticed friends reverting back to RSVP e-mails via Paperless Post Flyer. I'm still not sure if one person in this social group is not on Facebook, causing the change, but it has been a welcome adjustment. If Facebook Events can be replaced by an e-mail approach, I don't see why other products can't follow suit.
So like a rule to push it into your newsletter folder?