It's popular because it's good and was free to use. We'll see how it goes minus the free to use part, good luck to the author(s) trying to earn their living!

It's popular because it's good and was free to use. We'll see how it goes minus the free to use part, good luck to the author(s) trying to earn their living! How are things going for IdentityServer, they're the .NET project I remember making waves for doing this?