The margin trading game mechanic should be fixed. This particular scam in EvE makes no sense. This is not how a margin trade works.
A margin trade in real life is collateralized by broker/banker who punishes the margin trader if they cant pay for the full order.
CCP. An easy fix would be to garner income from the wallet of the player’s omega account. So when you margin trade you agree to ALL income of ALL of your account’s wallets may be garnered at HIGHER COST to cover the buy order.
IF the buy order is paid in full you dont incur the extra fee of garnering your wallet.
Say the contract is 10% @ 10% of value.
So if you buy 100million.
Then every time you add money to your wallet you pay 10% of what was added until you reach 110% of the buy cost or 110million.
This mechanical fix would still work with “margin trading”.
Now the margin trade skill lowers escrow, but also lowers the punitive fee (from 10% to 5%) and the skill lowers how much is garnished each wallet transaction.
This is an easy fix. And will eliminate virtually all Margin trade scams.