JavaScript - http://en.wikipedia.org/w/index.php?title=Special:Contributions&offset=20080325180859&target=MelonBot
Javascript URL thread: "javascript:lis=document.getElementsByTagName('table')[3].getElementsByTagName('td');for(i=0;i<50;i+..."
Error:
name: TypeError
message: Statement on line 1: Could not convert undefined or null to object
Backtrace:
  Line 1 of unknown script 
    lis = (document.getElementsByTagName("table"))[3].getElementsByTagName("td");
for (i = 0;i < 50;i++)