Anyone know why you cann't browse questions on Quora (or at least it's not clear to me how to)? It doesn't mention being in beta, so I assume this is the final

Anyone know why you cann't browse questions on Quora (or at least it's not clear to me how to)? It doesn't mention being in beta, so I assume this is the final site... EDIT: And what's with only being able to register via fb/twitter? I hope this isn't the start of a trend.