The old YaBB-based Tinderbox forums are now closed for new business and are accessible read-only. The new Discourse-based forum is now the main public forum, going forward. Note: to use the new (this!) forum you will need to sign-up afresh (if you haven't already done so) - though only if you want to post there.
The old forum should still be available to read and so continue to be there as a reference. For those not familiar with HTML & mark-up, I've made a small Clarify walkthrough on how to copy links to the old forum's threads/posts for reference use here: see http://shoantel.clarify-it.com/d/dl7lme.
[Edit, I've pinned this globally until 1 Jun 17. Users should be able to un-pin it individually, if desired.