I think for the most part one I really only have one person that does that on my sub list. What happens then is it's a random statement and gen when a friend replies it comes up over and over telling me someone replies ect and my box is basically the same thing with a conversation between the two.
So it does get annoying. I use it once or twice but that's about it. If I have something I really need to say about the comic or a rant I post that to my blogger. Or to friends on Facebook but not on the walls I normally just reserve that for something important.
I understand completely what you are talking about just thankful I have at most 2 people that do that, I'd loose my mind if all of them did.