Lucky I was persistent, when I registered just then the activation link I got in my email was completely wrong.
It sent me to some thread locked thread from 2009 with instructions on how to activate my account by posting in that thread, except the thread was locked so I had no idea what to do.
I needed to request another activation email before it would work, I can see a lot of people just giving up after the first attempt and thinking your member registrations are still closed.
That could be why there are 6 users and 70 guests online right now, nobody knows how to register =O