I registered there a couple of weeks ago, and got a message that an email was sent to my inbox with a link to complete registration. That email never arrived, even though it should have been automatic.
After a few days, I emailed River Dave... never heard back from him. After a few more days I filled out the online form for "contact" with a problem with registration... never heard back.
I hope everything is OK over there. Love to join, as I am from the same town in CA as River Dave and like to boat the Colorado River like he does.