You wouldn't want to pass "maladaptive differences" to your children, if it was a possibility, would you?
It depends on which differences we're talking about. In the modern environment, fertility and intelligence are inversely correlated. But I wouldn't want to get more grandkids by making my kids stupider.
I am mildly frustrated that both you and the original poster seem to be using the word "maladaptive" as if it were a synonym for "bad" with a convenient veneer of scientific objectivity, like saying "see, evolution agrees with me that such-and-such qualities are morally undesirable!" Ha ha. Evolution, including human evolution, can be horrible. A week ago we had a discussion post about how an actual population of humans regressed to chimp-level intelligence due to evolution.
Maybe related: You'll get more than pretty butterflies.
It continually amazes me that people can read EY's Azathoth metaphor comparison or sort of understand how evolution works and still end up basically falling for the naturalistic fallacy!
I shared a link to that post since I hoped it would spark the same kind of gut feeling that no evolution really isn't your friend in others.
Upon reading Eliezer's possible gender dystopias ([catgirls](http://lesswrong.com/lw/xt/interpersonal_entanglement/), and [verthandi](http://lesswrong.com/lw/xu/failed_utopia_42/) and the other LW comments and posts on the subject of future gender relations, I came to a rather different conclusion than the ones I've seen espoused here. After searching around the internet a bit, I discovered that my ideas tend to fall under the general category of "postgenderism", and I am wondering what my fellow LessWrongians think of it.
This can generally be broken down to the following claims:
EDIT- Due to some really insightful comments;
I replaced men being prone to aggression as a negative, with men being prone to suicide.
I made the verbiage a little more explicit that no one would be *forced* to change, but would seek out the changes that transhumanism would have available.