Putting another barrier in front of it is not what's needed for people to use it. Treat it like email (or heck, early Facebook), get big clusters of users in by

Putting another barrier in front of it is not what's needed for people to use it. Treat it like email (or heck, early Facebook), get big clusters of users in by convincing universities and colleges to run a campus server. Businesses would also be a good idea but a harder sell