by Stephen Parry.
I suspect that if you assign front page role it will not restrict the users in all the ways you might want, e.g. you cannot disable user profile or password editing this way. I am not sure why the csv import does not allow system role assignment; it should. I think a backend hack (running some SQL against the database) may provide a solution, if you have some way of distinguishing reliably between the users you want in each role. I will have a look....