Well, if you need remove links to user profiles, you can iterate all td-elements with class ms-vb-user using jQuery each function and remove a elements. Here is a little script:

$(document).ready(function() {
	$(".ms-vb-user a").each(function() { 
	   var text = $(this).text(); 
	   var span = document.createElement("span"); 
	   var user = document.createTextNode(text); 
	   span.appendChild(user); 
	   var parent = $(this).parent()[0]; 
	   parent.removeChild(this); 
	   parent.appendChild(span); 
	});
});

EDIT 2012-02-05
A much more better way to do it is to use replaceWith in jQuery:

$(".ms-vb-user a").each(function() {
   $(this).replaceWith(this.childNodes); 
});

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