To leave comments or participate in the forum, you must first become a member. All membership levels are free. The registration form is here — click to be taken to the relevant page. Completing the form means that you agree to these terms and conditions, which may change from time to time.

Once your registration has been approved, you will be a Silver Member, but you can change your membership level at any time.

There are currently four levels of membership: Bronze, Silver, Gold, and Platinum.

Bronze Members may leave comments and participate in the forum, but the only time they will receive any notifications is when there is a new comment on a post or forum thread to which they have specifically subscribed.

Silver Members have the same access and receive the same notifications as Bronze Members, and they also receive notifications whenever a new post is published on the site.

Gold Members have the same access and receive the same notifications as Silver Members, and they also receive notifications of new comments without having to subscribe to each individual post.

Platinum Members have the same access and receive the same notifications as Gold Members, and they also receive notifications of all activity in the forum without having to subscribe to individual threads.

All notifications are by email.

Comments and forum contributions may be moderated. Disagreements and controversy are fine; personal abuse and profanity are not.