That UI is also has several UX problems:

1) Poor defaults - better to pick "Choose One" / NULL instead of misclassifying gender, etc

2) Small widgets, hard to click/read

3) Confusing "OK" button and saving behavior

4) Hard to even find in the first place!

The placement is deliberate -- dating won't be a viable use case for the site until user count has increased substantially. Right now it's mostly there to make people feel comfortable that if they leave dating off, they shouldn't be bothered.

male/female/other is actually pretty good afaik.