I'm actively working to improve things in the hiring space, and "ghosting" is problem that only non-payers (who are still a key-component of revenue) face.

The balance is such for every gig there are at least dozens of applicants (supply) who are qualified - and this supply shifts over time - and this supply has urgent demand.

Ghosting is currently not a top issue for managers or recruiters. I don't see how name-and-shame changes that at all.