[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.