I'm on a fan page that allows "karma" to be left. The way it works is that someone writes a post, and if you agree, to can leave a comment. It's great for short comments, or when you just want to agree. For example, if someone posts...
The Semogue 620 is a great brush
The I can leave karma and a little comment, like "I love mine" or "Mine is in the mail."
I have no idea how you software works, or if this is an option, but it would work great on B&B.