Re: meetup, AN usually has a meetup before exams every year (just to avoid that "so what was your ATAR?" conversation we all hate but still secretly want to have). Occasionally there's a second meet after results for people who miss the first one and for people who love meets. Typically they're held in a public location in the city, Flagstaff Gardens has been a favourite in recent years, with everyone buying/cooking a small something to share for a non-alcoholic lunch (we even had a BBQ one year!). Someone also ends up bringing a tennis ball for some intense 4-square or a soccer ball or something to keep things interesting.
In terms of people who turn up, it's mostly people from the graduating class, but usually a few younguns and older AN-ers rock up to give it a bit of diversity. Usually about 30 people or so rock up depending on the weather (even a good 15 people rocked up to MC on a really rainy day!).
Most people, after an initial period of awkwardness, find it really interesting to put faces to names of people not only in their graduating class, but other people on the forum (usually some mods/admins rock up). Good to make a few new friends and make get some advice from the inevitable few uni students who rock up!
If you guys would be keen on that idea and if someone would like to stand up and take charge, might be best to make a new thread about it and maybe even contact Brenden as he's organised a couple of really good meet-ups in the recent past

Few old threads to give you an idea:
AN meet!AN Meet 2013/14Victorian ATARNotes Meet : 27th November 2011 (Review)VN MEET UP 2009 DETAILS!2012 AN Meet Up - Be there or be Permabanned!AN January MeetVN MEET UP 2009 AFTERMATH !even
We should have a Integration Bee in the next VN meet up.