I should specify that I mean loot in the form of treasure chests and barrels. Looting animals and fallen enemies is necessary for realism. Other than that a treasure chest every half an hour seems reasonable.Loot once every half hour?? LOL..that isn't an rpg I'd like to play.
I really don't associate Geralt and most role playing leads as being scavengers who look in every barrel they walk by. Sure the gamer can choose not to loot everything, but in a game with a large variety of crafting items a majority of gamers will be nervous about missing the opportunity to accumulate much needed crafting items.
Also who plays a role playing game to accumulate dolls and broken rakes. I would prefer a role playing game that had more boss fights with weapons that are unique. Witcher 3 is an amazing game, but should of choose quality over quantity in regards to loot.