It doesnt necessarily has to be exact copy of retail AH, same like we didnt get retail group finding tool …
But allow us to search by buyouts, search by name (looking for raw gem, you need to go through billion pages of already crafted ones), post multiple stuff at once, search for stacks etc …
Half of the issue with AH are cause by people spamming it with addons since its garbage and you cant find anything … and the other half by idiotic bots spamming everything by 1 stack and nonsense prices which could be avoided by giving us proper search options, so we can ignore this trash …