Congrats on the first birthday! (almost) Is there a party? :-)
Okay, here are some suggestions:
I've set up successful web forums myself in the past so I know that as the member list grows you'll start seeing more spam, trolling and flaming on the boards. With more and more members it will become less and less friendly and personal. One of the great things about this place is that it's still friendly and basically spam free. To help keep it that way I suggest you stick a "report" tag next to each post. Make it easy to report bad stuff and quick to be removed.
Have a few named and recogniseable moderators that members can turn to. Or do all the official "OA...." members do that already? You may need someone on duty after business hours when this place is larger. One board I was associated with had to resort to IP blocking as a result of persistant spam and trolling under multiple user names from the same IP addresses.
Clamp down on the annoying personal contact seekers before they take a hold - that's not what the site is here for and the web is FULL of contact sites.
Add a LOUNGE forum for any topics not covered by your current catagories - some people here are friends and it's better to make non specific comments in a lounge setting rather than going off topic in the specific catagories.
Have a list of all recent posts and allow users to search over selectable time periods (last day, last 3 days, last week etc). At the moment you just see the last three full stop, so it's hard to know what you've missed without going into every forum individually and I suspect many folks can't be arsed to do that on a regular basis.
Publish a table showing exactly what the "ranks" mean. I'm curious to know how many reviews a Field Marshal is worth! On second thought's don't - it will just encourage people to submit loads of short and not very helpful reviews, just to climb the ranks (many people on web boards are very status orientated I've noticed, and don't care what drivel they post so long as they show up at the top of the member list) No criticism of anyone here on that last point btw.
Integrate more funcionality into the forum to brighten it up a bit. I know it's meant to be a quasi military olive drab theme, but some smilies would not go amiss. The quote thing needs sorting too. I've tried and all that happens is this
[quote] this is a quote but where are the quotation marks and frame? [/quote]
That's all for now - I'm sure I thought of something else but it escapes me at the moment...