This is the way it works!
If you want to join in, comment, make a contribution, it's easy.
But you have to join.
You need to be a member of Webs. But that's easy too, and it's free.
Click on the link above and it takes you to their website. Look for the button called 'Register'. Click it and follow instructions.
Then, every time you come back, you can 'Log on' (with the username and password you've chosen), join in and take part in the ongoing discussion. (It's been happening since 2007 and it doesn't look as though it's anything like over yet.)
(PLUS, you get the chance to get your own website from Webs, free.)
If you want to observe, fine, but it's more fun to be a member.