And as said above all the freebies that they receive courtesy of "voluntary" donations by the gullible sheeple are in fact pay. Just ask any CPA or tax advisor if it is considered income/pay for tax purposes in the U.S. when it is given to a member of a business.
Actually, gifts are tax free. But somewhere between local elders and the higher ups, that money paid to CO's, the GB etc might be determined to be payments for services, or payments for contract labor; or just plain pay, all of which are taxable income.
The WTBS is playing with fire on this. On top of trying to split hairs with definitions of "paid clergy" vs "volunteers" they may run into a tax issue if somebody decides to call all those "donations" taxable income.