The Guardian hired an outside firm to analyze their comments section, and the results were unsurprising.  Articles by women and dark-skinned people got the most insults; articles by dark-skinned women topped the charts in this regard.  I see this every time one of Shemma Khan's excellent articles appears.  Often posters pay absolutely no attention to what she has written and simply pop off about Muslims.  It's like some sort of red alert goes out on twitter to wake the trolls.