The Solidworks User Forum that we used for many years was organized into many sub forums.
Are those gone forever?
Can threaded commenting be turned on with this forum software?
Has someone else asked these questions?
Is there any way I could find if someone has asked these questions?

From what I can see so far, the new forum has good features to it, but no effort was put into organizing the available information or make the user interface details the most helpful. It's infected with the 'tiles' fad from years ago and everything lives in one level at the top. A community site with so broad an interest base needs some nested organization.