Our forum upgrade is complete. You should see some new options around the forums, restoring old IB3 functionality that has been on their cutting board for a while. There will be some hiccups but we're working on it as we can.
Due to some issues however, the Catfish skin has been taken down for the foreseeable future. We'll get it back as soon as we can.
Edit (3:42PM EST): Sonical (Retro) is in hard shape as well - it'll remain up for use but will likely be rebuilt in the near future to fix the weird bugs. I won't be fixing these directly and will instead be focusing on making sure the parent skin (2015) is working correctly.