Just because the owner of the site is in Melbourne (or wherever they are) doesn't mean Sydney folks can't get together. Or Perth. Or Adelaide. You got the topic going, the rest is easy. Set time and place and let us know how you go!
I'd probably be more interested when I have moved on from driving for Uber, but the Airport queue is generally where I am most likely going to interact with drivers I do not know. Did the UP group end up deciding on a corner or a signal? Hazard lights upon entering?