Removing pesky Subject line tags

Hi,

Several of the mailing lists I receive have started adding those pesky
[LISTNAME] or {listname} tags to their Subject lines.

I've developed this recipe to get rid of them but it seems rather
inefficient.  Can anyone suggest improvements?

# Remove annoying [XXX] tag from Subject line and store in MH folder
:0
* ^TOxxx@
{
    NEW_SUBJECT=`formail -XSubject: | sed -e "s/\[XXX\] //"`

    :0 fh
    | formail -i "$NEW_SUBJECT"

    :0    
    xxx/.
}

Thanks,
  --[Lance]