On the fonts: YAY! I will test.
A minor feature that might be nice to have, suitable for your B-list of things to implement if they're easy enough and whenever you acquire a circular tooit:
On the forum overview page (?id=31), for each forum, an indicator of how long it has been since the latest post.
Why? Because the first-time visitor to any forum's biggest first question is always "is this place alive or dead?", and so I suggest making the answer as convenient for such persons to ascertain as you find reasonable to spend the effort on; at present one can answer this only examining each forum in turn.