[rtkwe]

Honestly this might be a good thing, it seems to show that ad networks don't have or at least don't provide your actual purchase history to the ad space buyers because given that info they probably wouldn't be spamming someone who just bought a $thing with ads for $thing_but_from_us. As annoying as it is it's probably better than the alternative of ubiquitous access to your purchase history.

[edgyquant]

Well we know these places buy your credit card history, so it’s more proof that their ad system is shitty and their customers should make a fuss.

[disgruntledphd2]

Yup, this is the problem. There is no centralised log of what people bought, which is what you'd need to actually fix this problem.

[joshspankit]

A good argument, but it happens on Amazon when the search, research, and purchase were all on Amazon.

[rchaud]

Yup, I get "buy it again" prompts on nearly all of my recent purchases, even when they are all durable goods that don't expire or require restocking, like say a tablet case.

[disgruntledphd2]

Hmmm, that's really weird. It's probably an edge case that would be complicated to change in that case (never underestimate the power of inertia, especially in ML systems).

[joshspankit]

I feel like it might be almost trivially solved with a “buyer only needs one [for X months/years?]” property on the items.

It would likely have to be added by a human, but still: there are a relatively small number of items that people only need one of.

[htrp]

ML is pretty shitty at causal inference