Let me preface this with, this isn't directed at anyone specifically in this thread....
That said, what we really need is a content ignore feature.
I find that there are more then one type of useless poster. Here are a few of the types I would like to ignore.
1) The village idiot/Pre-pubescent tard
2) Mr Smiley Face man: Every post consists of nothing but one or more smiley faces
3) Mr I've been flying flight sim games since before the Wright Brothers were born, so I know everything and nothing anyone who hasn't been flying flight sim games since before the Wright Brothers were born has anything worth reading to say, so I will take it upon myself to redicule those posters every time I have the opportunity.
So rather then a hamfisted "Ignore User" function, I dream of a filtering system that will weed out the useless posts without blocking the occaisional bit of wisdom that might come from #3 when he/she comes down from his/her high horse to spend a moment with the unwashed masses.