Over the past few weeks I have driven Sydney to Armidale and back and then Sydney to Tweed Heads and back meaning the best part of 2,500km i think.
I think I waved at pretty much every LR I passed. I think I got 2 waves back.
My wife and kids think it is a bit sad but it gives me a laugh and hopefully like the original poster gives the other drivers the impetus to start to wave as well.
Regards,
George

