*shrugs*
Ghosting can have its place, in the right context, but that's just me. If I barely know a guy and he starts talking right away about inappropriate things and/or asking what I'd be willing to do with him, you can be sure he'll never hear from me again.
Sure, I'd love to say, "You're a total %$#!*&%^!!" but at that point, I really don't feel an explanation is necessary... or worth the time.