First is it's not immediately obvious that I couldn't get away with just entering the month of birth - I don't like giving away the rest and the day and year looked like optional buttons so I didn't fill them in.
Next the username and password were not remembered when I went back. There are perfectly secure ways to remember them (password can be temporarily stored as md5 with a conditional on it for if the user has gone back. A good conditional might be is the password 32 characters long?)
Third time I made it.
For posting new threads most users have problems finding a forum category page. They will have even more trouble finding a new post button positioned on the right of the page. It threw me.
I hoped something like xenforo would appear. I've been trying to follow Kier on Twitter or eBay or somewhere like that in the hope that a new forum package might be in the works. Looking exciting!
PS - what a dirty avatar for those who haven't selected one.