It's a matter of taste and an offense to nature. Would you like it if a cryopreserved embalmed 10 foot tall pile of human feces was permanently enshrined atop Everest or on a buoy at the mouth of the Amazon river? If you felt any revulsion or disgust at the idea, that's probably the way the felt at the idea of the relatively untouched 'nature' of the moon beginning to be used as a novelty landfill/dump for rich people to stow their trash (or important human remains).