How will you know if you are doing enough for Christ's brothers?
That's easy! They can tell by your visible service, of course! It's a tried and true method of weeding out imitation Xians. Why else do you think they have a "spiritual paradise", free from corruption and pedophilia?
They can also suggest that JWs use a WTBTS owned Internet provider. Then the GB track websites and online donations. Surely that would help prove who the sheep are?