Thanks for reporting this. I’ve fixed the stray close div tag on the Who’s Who page.
I think you’re right that there are a few problems with the forum pages as they stand. both to do with the layout of the individual pages, and also that forum posts don’t have “breadcrumbs” at the top to show where they sit in the hierarchy of forum topics. We’re using a standard Drupal forum implementation, but it seems a bit rough around the edges. I’m trying to figure out at the moment how much needs to be done, but I fear some of this involves rewriting their code…