registering for commenting on http://blogs.gnome.org not possible

Hi,

I wanted to register myself at http://blogs.gnome.org/wp-signup.php
so that I would be able to comment on one of the blogs. So far it seems 
impossible. I tried quite a few email addresses I have, but I always receive 
the message "Sorry, that email address is not allowed!". I assume this message 
was meant to prevent everyone from registering a blog, but it also keeps 
people away from commenting. Would be nice, if someone fixed that, since I 
really want to write a comment :-)

BTW: I might be also useful give some means of contact on 
http://blogs.gnome.org itself and not only hide that information on 
http://gnome.org itself.

Greetings, 


Mark