That snippet in your Free Nodelet Settings might help.

<script type="text/javascript">
function xl (query) {
    var r = document.evaluate(query,document,null,XPathResult.ORDERED_
+NODE_SNAPSHOT_TYPE,null);
    var a = new Array;
    for ( var i=0 ; i < r.snapshotLength; i++ ) a.push(r.snapshotItem(
+i));
    return a;
}

var ohrwurm = xl("//em`[text()='I personally believe']");
for (var i in ohrwurm) {
    ohrwurm`[i].parentNode.innerHTML = ohrwurm`[i].parentNode.innerHTM
+L.replace('<em>I personally believe</em>','I guess');
}
</script>
[download]

That said, I'm with you in the perception of "I personally believe" as (according to my favorite online dictionary) something like a "catchy song", an earwig, something that goes on echoing in your head long after you've read it.

Don't take that too seriously. I'm Just Another Heck Parler.