You can either pick "with Google", "with GitHub", or you can fill out the form as a third option.
I've highlighted the 3 options inside (hideous green) boxes. Pick one that you like.
Let me know that you have an account and want access
I'll be proactive for a while and search for new users that should be on the dev list, but if you catch this afterwards, here's how you can send a message through discourse.
First, get to the messages area. 1. Click on your avatar. 2. Click on the envelope icon.
That'll bring you to a messages screen. Click on "New Message."
In the blank box, type "syclik" or "Daniel Lee" or take a guess at whoever else is on the system.