I felt a small amount of humor -- indeed, what a small attempt it was, I didn't consider it that amusing -- was welcome in the thread discussing the shortcomings of the accompanying infographic. Unless you'd like to have a serious discussion about the shortcomings of the accompanying infographic? I'm not sure there's much intelligence to be had in a discussion responding to "Wow is that ever a terrible infographic".
Can we discuss its poor choice of color? Its lack of visual appeal? The obvious selection of a Home Depot paint swatch to represent Google's old index, and what that means for their database technology? Not really. Not in response to "Wow is that ever a terrible infographic".
I'd be hesitant to flag everything that you don't initially understand. Cut HN some slack, we're intelligent people and we enjoy humor as much as the next man. I certainly appreciate when someone makes me chuckle in the comments, and I'd loathe HN if that went away by your hand.
Given something like http://news.ycombinator.com/item?id=1403672 is it HN that has to change, or the person in the chair? I realize your time may be valuable, but you don't have to read everything and get offended by its presence -- including my comment.