Reverse of IdP Discovery Service

[Klingenstein, Nate]

> Several of our campuses would probably use the feature immediately, but I don't expect priority until we're members.

> If the use of this depends on enumeration, we can't do that. That won't be possible going forward.

I understand totally.  Some of my use cases might be satisfied if the IdP could audit and display the most used services, but many of them imply enumeration.  I think the OP's use case does.

I'm glad to get an issue filed so there's a clear stake in the ground.  Thank you for helping.