Why would any people need to see the addresses at all? The solution being proposed is something that you'd automate with a series of heuristics. And your point about the company making the same money for shipping to scalpers vs non scalpers seems like it would only apply to the shipping company, but if you view from the perspective of the product company, obviously they have an incentive to avoid scalpers because it negatively impacts the brand and the price spikes are money not captured by the product company and may even reduce further spending (eg if a buyer spaffed half their budget on an overpriced console, that's less for buying games which benefit the product company, eg Steam in this case)