[tehlike]

>"I bought that new power tool last week. Stop showing me the ad for the tool from the same store I already bought it from."

Yes. I hate this too, but think of it as a bug, not the actual intention. We would love to know when you wouldn't buy a product as much as we would love to know when you actually would. But we don't, always, and end up having to make approximations. We don't always know what you actually bought, we just know you bought something. Advertisers don't even always tell the value of stuff you bought, something tht'd have benefited them to share from ROI pov etc.

[pdimitar]

That "bug" exists ever since adtech exists.

Clearly, nobody is interested in fixing it then?

"It's a developing area" is a pretty old adage by now, and is worn out. Modern tech exists for 25+ years now. Do something. Most of the people I've spoken to hate ads.

Not fixing ancient bugs isn't helping the situation.

[tehlike]

No, this is within the framework - the buyer (say, amazon) wants to target you since you recently bought something. They could say they don't want to target you since you already bought it, but it's partly up to them. FB/Google/etc could downrank and reduce its frequency or whatever, but it will keep happening one way or the other due to variety of sellers etc in the market.