Alright, I've finally:
- Reverted the font to non-tiny.
- Fixed the RoboRumble Twitter feed 
- Restored the @robowiki Twitter feed on the sidebar (actually it's a new one, I guess they killed the old widget).
- Moved Twitter feed below toolbox, as I think a couple people suggested.
- Noted that the new widget can hide @ replies, so I'm not afraid to respond to people as @robowiki on Twitter any more. :-P