This is just because agents don’t see ads right? Regardless, this is one of the advantages of software heterogeneity. The cost to detect rises substantially and the false positive rate will eat you alive. My agent buys me things. On Amazon too, yeah. OpenTable is hard to handle but I’m sure it’s fixable.
>This is just because agents don’t see ads right?
Put another way, because it undermines the revenue that is providing you the service. Working around it is not a sustainable solution.