Can Tidy remove Repeats

I have a client using Editlet (www.editlet.com).  It produces HTML that 
looks like:
 <b><u><b><u><b><u><b><u>some text</u></b></u></b></u></b></u></b>

Can Tidy remove redundant tags like this?  I downloaded the executable 
and ran tidy on the HTML every time Editlet makes changes.  But, the 
code for a small page quickly grows in excess of 100 megs with  just a 
few edits.  So, I don't know if I'm using tidy wrong of if it doesn't 
have this ability.

 -Shaun