You will be violating their ToS and they will blacklist you. If they send you a cease and desist, you will have to honor it. If you don't, they will have a cas

You will be violating their ToS and they will blacklist you. If they send you a cease and desist, you will have to honor it. If you don't, they will have a case. So it's completely legal until they tell you to stop, at which point they can sue you for damages.