When most of your server capacity is going to answering the scrapers it matters. It's not that the stuff is hidden, it's that storefront being flooded with 10x as many customers as the fire code allows. And some of them go around asking your employees mindless questions. (Small forum I help moderate: we were getting hammered with what was probably some sort of AI that was taking search queries and feeding them into the forum search. Search is now registered users only.)