>>29569654The based ones are not that hated though. Only the stupid ones. But the answer is the concept, I guess.
A shinto temple bell, jomon doll, rock elementals, haunted lamps and swords, flying saucers, toxic slimes and living machines, are cool concepts for monsters. They have always been a thing in either folk stories, urban legends or rpgs. And they're something that is interesting to find while exploring ancient ruins, haunted houses or abandoned laboratories during your adventure (in most games not just pokemon).
A set of keys, an ice-cream, a garbage bag and a sand castle is not really interesting as a monster, unless your adventure is baby's day out.
