I expect a small site that undercuts the top Google results by 18% with a sign-up discount probably isn't profitable on those orders, so blocking agents would save them money - it's not like someone using agents in that way is going to have any loyalty to shopping from that site in the future.
Yeah, I mean if that's the case, then said small sites are probably headed for extinction, and agents won't have anything to work with other than whatever the top Google result is anyway.
