Nobody would argue that they're an employee of the community centre, but it seems obvious that they're a volunteer doing volunteer work at the community centre

Nobody would argue that they're an employee of the community centre, but it seems obvious that they're a volunteer doing volunteer work at the community centre - and NY law says that either the community centre is a non-profit, or it can't have volunteers; if that's a for-profit organization then that guy running a debate club must be paid minimum wage.