cash rate 25 bps to 3.25%, page-33

"Anyone who is under stress from a rate hike from such a low base has clearly overextended themselves and probably should sell up and rent. Face up to harsh reality, the RBA doesnt exist to hold the hand of stupid people. Remember these are the same people who recieved so many rate cuts and govt handouts not that long ago."

Remember, some of these people have had mortgages for many years, and were probably doing fine financilly at a time when rates have been a lot higher and have had no trouble meeting the repayments.
A lot of other things have changed for many of these mortgage-holders over the last year or so. This doesn't mean they have over-extended themselves/are stupid/lack planning. Many skilled and competent people who have never been out of work now find themselves in a situation where they are not working or are working reduced hours. This has changed the amount of money they have available to put into their mortgages.
This will put stress on long time mortgage-holders, as well as the relative new-comers.