eBay is only doing this so that they don't have to pay the AU government tax for items other people sold.
Which is fair enough, the only other option eBay would have is to charge foreign sellers a tax if they sold to Aussies, which we know would never be acceptable, most of the US eBay stores don't even like posting overseas and over charge us on postage so a seller fee imposed on those that sell to Aussies wouldn't go over well.

Thing is this move isn't about buying locally or keeping money in Australia, it's about Gerry Harvey living in the past and thinking he can keep excessively charging. He hates the fact that we can get things cheaper elsewhere but rather then lift his game and stop ripping us off he's instead chucked a tanty and pressured the government into this draconian scheme thinking that we'll just turn around and buy from him.

Jokes on him though because even if he stops us buying from overseas (which he cant, we'll just need to resort to shipping forwarders and VPNs like we used to) most of us STILL wouldnt buy from Hardly Normal as we can get cheaper items then his from other local retailers. Or what, will he next try to get rid of Kmart, JB Hi-Fi and other retailers that charge less for the same items?

Also I posted about this topic HERE earlier as it's related, so if you want more info might be worthwhile checking that thread