"Get more answers and clics" Did you mean "clicks" there?
It's my understanding that most WhatsApp as a service thingies use disposable phone numbers, what's your chances of getting banned when using this?
Let's say you contact a group of friends saying "Hello how are you? check out my new website: <link>" you will have less clic on your link than a customized message like "Hello John how are you? check out my new website: <link>"
Great for launching products to inform your network via WhatsApp