We have changed the user registration from automatic to administrator approved. I realize this is going to be a pain for some people who are coming to post looking for help but hopefully we can finally get a handle on the forum spam this way. If you need to be approved, please just use the contact form to send us a message and we will approve you as soon as we see it.
Otherwise we will try to approve what look like real request but the best way to be sure is to use the contact form.
Sorry about any inconvenience, this approach worked very well for the wiki and hopefully everyone will be happier once we have a spam free forum.