When I was a kid someone taught me that merchants in middle ages used to say if you manage to sell a bag of shit to people you were a good mechant, and that was their goal, rather than sell stuff actually useful.
Anyone want some thin air? It's called virtual materials.
I'll take a dump and go sell it. 5000$ my crap, it's a limited edition only 1 a day is released.
If you give me your life savings you get my dumps for a whole week!
I'll sell futures on my dumps for the months to come.
"But the regulators said crypto currencies were the future and everything"
==> Yes R-E-G-U-L-A-T-O-R-S
If they knew anything, would they be:
a/ Regulating boring losers
b/ Fucking billonaire legend traders
?
That said, it's all personal opinion and I don't think these things will just disappear forever, let's see what happens when the cattle hype totally vanishes.