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.
A checkbox has been added to the dictionary category edit page that will cause words to be updated to match any name changes to the category. No more hours of manually editing everything ever because you decided you wanted to capitalise your parts of speech!
It would also be useful to have a way to mark things as read besides actually looking at a list of posts.
Done. "mark as read" will now appear in the top bar on all threads, forums and the forum index page (although for technical reasons it appears below that on the forum index page, since it's not really a page mode.)
Renamed Dictionary Categories to Dictionary Tags, to try and prevent confusion with lexical categories/parts of speech. This may cause bugs in the importer or normal dictionary function, although I think I updated everything consistently. Please let me know if you spot anything weird and I'll fix it right away.