Do you still use IRC? I often think the chatter you see on a social network very much looks like what you see in any group chat environment – people post a mixture of interesting and banal things, I don’t see why you get so worked up about it. It’s easy enough to mute anyone or choose to subscribe just to ‘important’ updates from them (whatever they are). Facebook in general also does a fair job of bubbling up more interesting updates as they tend to have the most likes and comments.