#casualsexism

It's not necessarily sexism to point out an (unfortunate) demographic fact (at least, in the US [1]).

[1] http://www.bls.gov/cps/cpsaat11.htm

(Don't get me wrong; I'm not a huge fan of the wording of the grandparent comment either, as it could be taken in a normative sense. I just dislike kneejerk PC callouts more.)

The fact in itself isn't sexist; but I don't see how bringing it up here is relevant except to say "Hey people, remember that almost everyone here is a guy!"

If statistical facts about reality is sexism, then the word is meaningless.