Here's the problem with using words like "bro" (however jokingly): the problem is not with what you[0] are thinking when you read the word "bro", but with what other people, especially newcomers, are thinking. The locker-room atmosphere that stuff like this creates is a huge barrier to entry for a lot of people, women especially, who infer that on top of all the technically difficult stuff that everyone has to learn to be CS types, they'll also have to deal with a constant barrage of "you're not our kind" flung at them by the in-group. You personally may not be intending that as your message, but I assure you that your personal intent does not matter when you are using language that has been associated with exclusion and discrimination.[1]
The problem here, if this program is actually intended to be used, is that just typing in the command would be a constant reminder of an entire subculture that is widely seen as[2] putting up walls and doors that say "NO GIЯLS ALOUD" around the programming profession, an attempt to preserve privilege. Those of you suggesting an alias are either being disingenuous or missing the point entirely.
[0] Meaning individuals, of whatever gender/race/class/whatever, that are likely to be reading HN.
[1] If you don't believe me, ponder for a moment sentences like, "But I like Negroes just fine!" Language matters.
[2] Again, you might not mean to reference that when you use words like "brogrammer". But it's how an awful lot of us read it.
EDIT: Rereading other posts on this page, I should add that I almost certainly got the phrase "shame about the name" stuck in my head from reading dewitt's post. Four words, such a concise summary of my attitude! :)
EDIT 2: "they'll have" -> "that everyone has" to clarify argument. Thx vezzy-fnord.
(N.B. the people that seem to be offended so far are offended on other peoples behalf..)
Isn't it way more offensive to assume that women are such dainty delicate creatures that like, they won't get the joke?
In it, Katie Cunningham explains the problem with the "it's just a joke" sentiment. Specifically, the cumulative effect.
But if you're having a serious conversation with someone on the subject of privilege, and you're on the privileged side (and they're not), the likelihood of you accurately identifying when they should lighten up is so vanishingly small (I keep finding my blind spots in spite of years of being attentive to this kind of stuff...), and the chance that they might actually benefit from that sort of comment from you in that moment is so ridiculously tiny, that you're better off holding your tongue.
Let someone else guide them if they are indeed going too far (let's pretend you're right, for the point of discussion) -- someone who they can trust more, for example.
EDIT: just to add -- the problem with these situations is that your instincts (even usually-reliable instincts) are almost certainly wrong. You may be smarter & more articulate; you may be able to debate them into the ground without breaking a sweat; but if you're on the privileged side and they're not, you're probably still wrong in this discussion, and you're not going to help that situation at all by being articulately wrong.
Just speaking for myself -- and I'm on the "winning" side of almost every privilege imbalance I can think of -- but it is not really possible for someone like me to get an natural grasp of what I'm really gaining. I can't help but forget, much of the time. It's like walking through life in a world with frequent, deafening shrieking noises that are just above my range of hearing, but most of the people around me can at least some of them, and are constantly knocked off-balance, disturbed, upset.... I can argue persuasively that with good concentration habits, an occasional shrieking noise shouldn't affect your life much, but I've never heard it once; maybe an echo here or there, that's it.