I've always thought the gender stuff and many others (not getting into them) are borderline insane, which is why I usually avoid that if possible.
I can understand the sentiment, but history has shown that if insanity is not confronted it expends in both power and depth.
The problem is that it's a two-way street. What you see is not what I see, and if person X is claiming A, I myself might be seeing D instead. Reality-wise, we would probably have to check their genes, but that's less practical. So instead people go to their intuition and just call them whatever they think fits.
It's also a pretty big offense to call a woman a man, and vice-versa, so there's still risk in that.
There are some long lists of false beliefs that programmers hold. isn't because programmers are especially likely to be more wrong than anyone else, it's just that programming offers a better opportunity than most people get to find out how incomplete their model of the world is.
I'm posting about this here, not just because this information has a decent chance of being both entertaining and useful, but because LWers try to figure things out from relatively simple principles-- who knows what simplifying assumptions might be tripping us up?
The classic (and I think the first) was about names. There have been a few more lists created since then.
Time. And time zones. Crowd-sourced time errors.
Addresses. Possibly more about addresses. I haven't compared the lists.
Gender. This is so short I assume it's seriously incomplete.
Networks. Weirdly, there is no list of falsehoods programmers believe about html (or at least a fast search didn't turn anything up). Don't trust the words in the url.
Distributed computing Build systems.
Poem about character conversion.
I got started on the subject because of this about testing your code, which was posted by Andrew Ducker.