I don't get it either.
No one knows, but what we do know is they’re very stupid, and very harmful for the environment.
its individual taste/opinion innit. this is like printing out a picture of mona lisa and hanging it on ur wall and saying "got it for free, so whats the point?" all art is pointless by that logic.
and to ur environmental concern, yes its bad for the environment, but its getting better. what isnt bad for the environment nowadays, i see u play video games, the gaming industry is using quite a bit of energy... a lot of things do, but somehow only crypto gets shit for it.