It's just a joke dude you're taking this way too seriously.
Ahh, but is it? We'll never know.
You should probably read this, then you get what this joke is about:
Dank Soul Guarantee - Danksurance
The Dank Soul Gurantee is my karma based system of insurance. I acknowledge and respect that karma would play a negative role on me if I were to steal anybodies deposit, thus, offering an incentive to not perform such an action. Dank Bank, as with many other investment opportunities, is largely trust based. I hereby give my word and my soul that I will perform as an honest trader, no exceptions.
I thought Dank Bank was a joke scam. Ahh, but is it? We'll never know.