I'll try to give my opinion on the subject and answer some of the questions included.
Before the update, the benefit of Cayman Islands bank was that you could leave your money safely there and take a vacation from Torn. Companies are deleted after 90 days of director's inactivity and can be hacked, Factions can be destroyed (hard but possible), Bank has a investment period. Because of the deposit fee at Cayman Islands bank, players with a lot of money rather decided to invest money into stacking some 'stable prices' items like Xanax, Collectibles and more important - points. Buying lots of points was a fair way of securing your wealth.
After the update, things changed (obviously!).
First impact on economics was the price drop for points. Everybody wants to store their spare money in Caymans, since now the money itself could start making some passive income and the deposit fee no longer exists. People started selling points, there was not enough demand, so the price drop was inevitable. If you remember, Loan Shark upgrades were refunded at that point too, so that worsened the situation even more.
At the moment of writing, price per point is 67k, and it was a stable 80k per point back then.
While in theory this sounds like a way for rich guys to get even more rich, truth is that the interest is not that impressive (0,5%) and shouldn't be that much of a problem, shouldn't be deepening the barrier between the poor and the rich.
Mind that some upcoming Oil Rig specials affect the Cayman Islands Bank.
Oil Rig
...
5 star Oil Mogul - 24 hours bank investment time (75 job points)
7 star Tax Haven + 10% increase of Cayman Islands interest rate (Passive)
10 star Fat Cat + 50% investment banking limit (Passive)
The fact that there is a barrier to entry (travel) that prevents the earlier level player from using it for a while? New Players struggle to fill the regular Bank limit which offers much better interest rates then the Caymans, not even mentioning that newbies could easily get mugged abroad, especially in Cayman Islands. So, in my opinion, this is not an issue.
The effect more cash being created and circulated will have on inflation?
Just so we could get an image of how little that interest is.
If you have 1 billion cash stored there you will gain 5 million
per month.
If you have 10 billion cash stored, that makes up to 50 million per month.
Now if you really have 10 billion stored, 50 million is a pocket change.
You could easily spend it on Casino night without even blinking.
The point is, even though passive income is always better then no income, money stored there could be used much better for trading/stocks/properties and can earn much more money then just laying around. So rest assured this is not a loop hole/easy way for rich players to become dirty rich.
Just my 2 cents:
[image: www.culpwrit.com]