Livre d'Or

There was a big controversy on LJ a while back about adding "prefer not to say" as a gender option, because people who positively identify as something other than "male" or "female" didn't want to be forced to act as if they were hiding something.

Yeah, I'm not sure what's ideal. I think having "other" with an optional text box and "prefer not to say" is probably the best compromise[1], although I don't entirely like having to choose between "other" and "prefer not to say", or leaving trans people unsure whether they need to check "other" as well as "M" or "F".

[1] Or just leaving it entirely optional. Or leaving it off entirely, if you don't actually need that data, although it seems most companies later regret not having it. Or just having "preferred title" and not "gender", although that blows up when (inevitably) someone segments advertising on presumed-gender.