One of the biggest barriers to the use of the old forum was the fact that it required yet another username and password.
With the advent of openID - you now don't need yet another login. Going forward, all authentication on this site will be openID enabled. If you still want to create a username & password for the site, you can, and add an openID later if you want. You probably already have an openID - Yahoo ID's have been openID enabled since 2008.
Sounds great, how do I use it?
First, find your provider's openID URL: http://en.wikipedia.org/wiki/OpenID#OpenID_Providers or http://openid.net/get-an-openid/
Next, paste the URL for your chosen provider into the openID box on our new site. You'll be brought to a page hosted by your openID provider, and asked to authorize the logon. Once you do - you're in! We never see your password - you don't need to make a new account on this site, and we get reliable authentication.