Your second last paragraph perfectly summed up my feeling about it. :p I don't want to touch it at first, since its scam/money laundering smell is very strong(and also environment impact) also I think overall thing is pretty stupid.

But after some time that I,um, "participate" in it, I can feel the lots of weird creative energy flowing in there, collectively. Not a thing we see often in today's world. It's quite rejuvenating, and crazy.