Yeah, like I said, it seemed odd that they even allowed it in the first place when a trial/inactive account can’t even use a mailbox. I shouldn’t have said that I was 100% positive, but I am definitely 99% sure that it was an intentional change and that it’s combat/prevent exploitive behaviour.
Even on a 4h cooldown, that still means you could farm 6,000g per license per 24h with a bot operation or 48,000g per fully stacked account per 24h or somewhere around 1.5 million gold per month. EDIT: Correction, the cooldown is 2h, so it would be double all those amounts: 12k per account per 24h, 96k per bnet account(8 accounts attached) per 24h and around 3mil per month on a full bnet account. And that’s for free(after buying the base game) without having to pay for an active sub. If you wanted to, you’d only need to pay for time for the master account and not the alt accounts, if you wanted to move the gold around. Obviously, bot farms are doing stuff like this with hundreds of accounts and licences at a time.
They may eventually adjust it to where the item storage part will work, but I definitely forsee them keeping currencies locked out of being touched by trial/inactive accounts.