If this bot isn't actually negatively affecting anybody, more power to you. I certainly won't be the one to tell you what you can and can't do within your company.
Putting myself in those shoes, I would personally find it incredibly rude, and I highly doubt I'm in the minority holding that view, which means in my mind it's highly likely that other people at your company hold the same view (loudly or silently), which will contribute to making communications worse.
Putting passive-aggressiveness aside (which is a real problem)... I never contemplate "male-only" audiences, regardless of what I say. A somewhat-recent example: I've had some insecure guy come up to me being offended at my usage of "us gamers", as if saying "gamers" somehow excluded women.
There is something that really bothers me in such cases: The person is assuming ill-intent on behalf of the speaker. To me, it is extremely discriminatory to assume I don't include women when I speak. Why wouldn't I include them? Because they're women? Isn't that exactly the type of backwards thinking feminists are against?
shrugs I better just stop here. Whenever political correctness gets brought up, people on here seem to forget all logic and act completely irrationally - feminism really is the "for the children!" of the tech sector. I see even your post got downvoted for whatever reason; I brought it back up...