Today, while browsing the forums, I bookmarked a specific thread and was able to return to it about an hour later. After I'd returned to the thread, caught up, and attempted to go back to other bookmarked threads I couldn't find the bookmarks tab. I'm not sure if there was an update, as I recently got a new device and, of course, had to download the app again. If there was in fact an update that removed the tab, I would more than likely end up uninstalling because I like when everything is easy to find in an app. The bookmarks tab just made it all seem much more organized, and I honestly can't handle being disorganized.