@Brandon ***********
this issue is something that I'm only just becoming aware of. I have only travelled outside of Australia in two occasions before. I had travelled to The Philippines for 5 days in 2005 and didn't think to check any stamps. Last October, I travelled to Thailand for the first time and still didn't check stamps in my passport, but hopefully I will on my next trip there.
Just out of curiosity, when travelling Visa Exempt, when did it change back to 30 days from 45 days, which I believe was for a relatively short time. I just checked my passport after reading through this post and comments, that I was stamped in for 45 days in Thailand.