Getting a “No” versus ads.

I think I need clarification. I do know Brooke is in a different Business season than some of us, but I’m still confused about needing to get an actual “no” from a client from making an offer versus ads and social media posts. I’m fairly certain Brooke is not personal messaging all of those people which is why I’m not understanding why it’s so necessary to do ? I get getting uncomfortable is good- but it just doesn’t seem very time efficient (which I’m guessing is part of the reason Brooke does ads over personal messages).

Can you help me understand this better and why ads wouldn’t suffice?