Complete multiple Netflix trial subscriptions?

Can I use my debit card to sign up for a new Netflix subscription every month with a different e-mail address and then terminate it directly, i.e. Pay nothing?

Is it legal?

Does Netflix allow that?

Would Netflix do anything about it?

If so, what would I be threatened with?

No it's not legal. Fraud is never legal.

I always did it until I got paid for it by my brother. (Account sharing)

However, I would never use the same credit card.

It is not legal, but neither is it illegal. There's nothing in the terms and conditions of "One account per person"

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