Why do new car listings get scraped within minutes?

The fast-mover economy

Wholesale buyers live on arbitrage between listing price and market value. Speed is the entire business model: first contact wins the car. Scraping infrastructure - residential proxies, replayable sessions, instant alerts - is a rounding error against the margin on one flipped truck.

What sellers experience

Listings get instant interest that evaporates, lowball texts at scale, and dealer calls before real buyers see the post. Trust in the marketplace erodes even though the marketplace did nothing wrong - its inventory was simply read by machines first.

Slowing machines to human speed

Behavioral scoring at the listing-feed level - who reads what, how fast, in what pattern - lets a marketplace serve full feeds to humans and stale or degraded feeds to fleets. Inventory stays fresh for buyers; the arbitrage window closes for scripts.