Yeah, it completely boggles my mind that companies do this. I was selling my old laptop on eBay, and on the desktop and mobile version of the auction page, ther

Yeah, it completely boggles my mind that companies do this. I was selling my old laptop on eBay, and on the desktop and mobile version of the auction page, there were ads for the same model of laptop I was selling at a cheaper price on another site. I guess ad revenue was literally more important than making money off of users selling on their platform.