What about a content filter option? It could auto-group topics that could maybe be chosen when forming a post, and display them in a filter panel, and work like AJAX does so the page doesn't even refresh as it shows/hides posts that YOU actually want to see, this way you don't even lose your scroll position on the page. Content for you, and different content for the other commenters with opposing views, on demand at everyone's fingertips when they want it.
What about a content filter option? It could auto-group topics that could maybe be chosen when forming a post, and display them in a filter panel, and work like AJAX does so the page doesn't even refresh as it shows/hides posts that YOU actually want to see, this way you don't even lose your scroll position on the page. Content for you, and different content for the other commenters with opposing views, on demand at everyone's fingertips when they want it.