I am designing a module where the info is required if the user is male or female. Without this info the module is not usable.
If the webmaster decides to install my module then the user must enter this info or the module is not usable.
The webmaster may hope the user will find the "Edit Account" Option and fill it out.
I think most likely he will add the gender-selection to the registration form.
With the $modversion['profile']['field'][N]['register'] - Option the module is fully usable after installing - without any configuration.
I am a fan of working default configurations which are customizable.
The webmaster may remove the gender-setting from the registration form or uninstall my module if he does not like this procedere.
These are my reasons for the request.
Of course it is your decision - and i will live with it :)
Best regards,
Christian.