If this template survives TfD, I propose that we add a Template:User_du:-  

  
 {| cellspacing="0" style="width:238px;background:#FFE0E8;" 
 | style="width:45px;height:45px;background:#FFB3B3;text-align:center;font-size:14pt" |du 
 | style="font-size:8pt;padding:4pt;line-height:1.25em;" | This user is a native speaker of dumbass. 
 |}