Right now i see New (10), Unread (1), et cetera on the top bar, any way to have a button to “Mark all read” and clear those filters out? Maybe i don’t care about a minecraft thread and would be nice to clear those from the “New” filter 
The system works a little different then normal forum stuff.
Check out the preferences in your account settings. There you can select in what timeframe new/never read threads should show up under new.
About unread: Every thread tracks how long you look at it. After some time it will be automatically tracked. New entries will show up under unread. You can see and change the tracking status of every thread at the bottom of the thread.