i don't recall any "accountant" posting about it but a search will bring up some threads.
my accountant has just told me that a domain is a business purchase and you treat it as a product, buy for this, sell for that and treat gst the same. if you make a profit then its profit, if you make a loss then its a loss.
my accountant is an ex-auditor for the ATO so i just do what he says.
tim