Yea, me too, I don't recall ever getting a notification of that. Either it's turned off, or my Friends don't have much to do.
Seems like it's a demanding forum life for fuwanovel veterans; you have to keep up with the main forums, your PM's, your profile, your Friends, your Status Updates, the main blog, the other Blogs, the skype group, the TS group, and probably others I can't think of right now.