  Users are posting millions of questions on Community question answering sites
each day. The quality of those questions significantly affects the
satisfactions of the sites' users and, therefore, sites' traffic. We gathered
15 question-quality related features from one of the largest CQA sites and the
site's pageview data to estimate the scale of the effect in the corresponding
time series. By using a Grey Relational Analysis, we rank those question
quality features and estimate the relative strength of these factors on a
page's view numbers. Our results show that the features of question quality
have a significant influence on web performance. We generate a ranked list of
features and find that digital popularity and textual features can drive the
page traffic more than questioner related features and question difficulty. The
implications of the findings for Web growth and future research are discussed.
