What is ADAB trying to fulfill?
To conclude this, ADAB need to make sure that the "Food"(Tokens and Coins) that they provide on their "table"(FICE exchange) need to be Halal, as they want to serve these Halal "Food" to the Muslim world ( this is their only concern),the rest of the customer are always welcome disregard whether they are pimps, prostitutes, porn actors or drug dealer. The best thing they can do is KYC and AML to fulfill the require law and regulation.
Many thanks for your very well written post.
In your analogy about you made an error below because even though Halal restaurants will serve
pimps, prostitutes, porn actors or drug dealers but the people who want to open their own Halal restaurant cannot ask for investment or loans and take money from
pimps, prostitutes, porn actors or drug dealers to start their business because it will not be Halal restaurant.
If they want to accept money from
pimps, prostitutes, porn actors or drug dealers or are willing to accept money from
pimps, prostitutes, porn actors or drug dealers or will take money from anybody without checking if they are
pimps, prostitutes, porn actors or drug dealers then it will just be a restaurant when it opens to serve the public, it will not be a "Halal" restaurant.
That is why the source of funds must be vetted otherwise the word Shariah should be removed.