Great idea with some smart people (GoF, Martin Fowler, etc), but within 2 minutes, there are already big problems.
I registered with my account here: webmaster@(guess the rest). It let me register just fine. Unfortunately, I'm character limited when logging in. I can't type more than “webmaster@caseysoftware.c”.
As a side note, I hope to review one of Fowler's books soon…