Users "want" what everybody else is using so they can communicate. If everybody is using a federated protocol, like email, that's what they will want. You migh

Users "want" what everybody else is using so they can communicate. If everybody is using a federated protocol, like email, that's what they will want. You might say it is fundamentally easier to build closed systems and entice users to adopt them, but that's a business aspect not a user preference. Exactly the type of business that's of interest to regulators.