This was requested by Alan Anderson on the sourceforge tracker. I add it here. 
 
Different feeds have different levels of content. For  
instance, the slashdot feed, includes information not  
present in the dot.kde feed; date, section, department,  
creator, ... . It would be nice to have the option of  
seeing this additional information in the Articles tab,  
in the summary section. You would also then be able to  
sort this ( as per a previous submission ).