I clearly remember this was 2nd top feature request when there was a feature request board 2 years ago.
Users are always redirected to the invite-only documentation, but we all know
- it's clunky, not an auth0 experience at all
- it's hacky, things are repurposed (i.e email templates)
- example is written in .NET, I guess most of your users are not .NET users
Invite-only functionality can be a paid feature. We have been a happy Auth0 user for more than a year, and would love to pay you guys but we can't, because we only have a small amount of paid users which will never exceed the free quota...