BuddyPress.org

I am not saying my project will have countries, states, cities etc. profile fields. I am only using the states dropdown list as an example. But definitely a few layers of nested profile fields are needed for my site. For whoever chooses to use multiple layers profile fields in their design for user registration, I am sure they already have the values(might be just 1 or 2 or 5) for each layer in their mind, it is certainly not unlimited; on the contrary, it may most likely have very limited number of option values in each field for users to choose from. And that is why I say it is a basic requirement in the perspective of admins of a BuddyPress site. It is the capability of having this nested/conditional profile fields provided in the 1st place that matters, not how many values that are going to the fields that matters.