I can see 2 ways to implement it.
1. to redirect to a page with the terms, click on "I agree" and then proceed with the registration, or
My forum deals, among others, with financial and investments topics and I have to protect my interest and not be liable for false advice and/or recommendation of my users.
I'm sorry but this is not planned in near future, but it's already in our to-do list.
Currently you can customize wpforo/wpf-themes/classic/register.php
Theme customization quick guide:
I agree. This would be a great feature to add and probably pretty simple to implement.
Me too. I need my users to fill out more information. I need their names !!
Please wait for wpForo User Custom Fields addon, it'll be available in 1-2 weeks. It comes with user registration and profile custom fields.