[wp-hackers] Pesky "Says:"

[Benedict Eastaugh]

That won't work in Internet Explorer, of course, although that will
apparently change in IE8. Not much good for 6 or 7, though.

<http://msdn.microsoft.com/en-us/library/cc304061(VS.85).aspx>

It's also possible to use your own Walker class if you really want to
customise the markup, e.g.

<http://github.com/ionfish/tarski/tree/6cefd86cdd98b164529d6959dc69b4e8a1556c30/library%2Fclasses%2Fcomment_walker.php>