I have not
following this thread closely but this caught my eye.
 In support of the answer, I note that LaTeX source is the preferred
 submission format for every math, computer science, physics, and
 chemistry journal that I know of. =A0It is also extensively used by
 publishing houses such as Springer, CUP, and OUP. =A0 I cannot speak fo= 
 r
  humanities. 
 Hmmm...lets see:
 For the Springer site, I notice that the instructions for submission
 in Word are listed first and the default when the page opens.
 For the Oxford site, I quote "Authors should submit Word or rich-text
 files by the journal=92s preferred method. TeX and LaTeX files are also
 acceptable."
 For the Cambridge site, both Tex and Word are given equal preference. 
 
You cna. of course, put various interpretations on these statements, but
the very fact that they mention TeX and LaTeX implies to me that there
are plenty of academics out there using said text formatter.
-tony