After writing a detailed report in org-mode and submitting it via
latex/pdf, I've found out that for the next version of the report, I am
required to use "track changes" in MS Word.

I thought my best way to approximate this is to submit two versions: one
with removed text in strikeout and new text in red (hence my previous post
where I learned to RTFM on Macro arguments).

The best hack I could think of to generate a "final" pdf was to change the
macro definition so that struckout text isn't included in the output and
new text is no longer red.

i.e.

#+MACRO: stk @@latex:\sout{$1}@@
becomes
#+MACRO: stk

This works for body text, but leaves an empty headline, and in general I
don't really like it. Do any experienced org-folk have recommendations on a
better way to do this?