Technology

I don't know who would benefit from interacting with this.

Going from a Kraken fee of 0.16% to a Binance fee of 0.075% after discounts (while assuming that depositing money one has in a bank account will still work well and that there is no risk from legal liability or of an account being closed) would let one recoup a $250 fee after trading a value of at least $294,117 ($250/((0.16-0.075)/100)). If one is Canadian and would otherwise have to suffer a 0.5% fee, one could recoup a USD 250 fee after trading a value of at least USD 58,823.

Someone that has about $300,000 in a bank account that wanted to use all of it to buy cryptocurrency would probably be able to afford to become a citizen of Saint Kitts and Nevis or Saint Lucia or even Malta, so Palau is probably not actually targeting rich people.

Someone that is making about $300,000 worth of trades but isn't rich is someone who trades a small value many times each year, and "the vast majority of day traders lose money". This suggests that, for most people, this will be the final meaningful purchase they make before their net worth declines rapidly. However, anyone that does end up profiting might be inclined to spend more money in Palau (whereas people who go broke won't even be able to afford to stay in Palau and so probably won't be able to cause problems in Palau), so Palau might end up profiting from people who lose money and people who gain money.

I happen to have been asked about this many months ago, since at least one person was visiting cryptocurrency meetup events in order to advertise this "residency card".