I have two things I'd like to mention.

One: Is is possible that these people are trying to be the squeaky wheel? Perhaps they assume (right or wrong) that Nokia pays some attention to this community and perhaps if Nokia sees enough consternation about *insert what you please* they will fix it, or at least are more likely to fix it.

Two: Maybe this is something that users can do already, I didn't see it, but would it be possible to implement an ignore function, so that say for example, in my profile I say that I don't want to see post by *insert your nemesis here*. Obviously, you would lose some continuity in threads where these people were posting, but...just a thought.