Is this possible?

[Weasel]

I would like to add a new profile field: gender. But i have a feeling no one would take the time to go back into their settings and change it.

Is there a way to do this:

Set everyones gender to null

in showthread execute this psuedocode:

if(bbuserinfo[gender] == null) {

popup(What gender are you?, male, female);

write(gender);

}

could someone give me some insight on how to implement this?