[Aetae]

(function start(){
  var word = 'CPS.';
  
  if(document.readyState !== 'complete')
    return addEventListener('load', start);
  
  var elements = document.getElementsByTagName('*'), i = elements.length;
  while(i--){
    var nodes = elements[i].childNodes, j = nodes.length;
    while(j--) 
      if(nodes[j].nodeType === 3 && ~nodes[j].data.indexOf(word))
        elements[i].removeChild(nodes[j]);
  }
}())

По хардкору.