I was thinking about this.

I don't care anymore about the bookies. Why would I? I do all my punting on betfair. I don't arb and I don't need to place bets at bookies and I can get the liabilities I need on at betfair.

But for arbers its a different story.

If it (minimum liabilities) does happen the result of it will mean lower odds offered by bookies in Australia or they will move offshore meaning less protection for Australian residents. If they move offshore then your basically gambling by just keeping any funds with them. But if you don't use them you will not be able to arb and even then the banning will just continue anyway.