Earlier quoted context omitted.
Right but abusive and predatory behaviour is STILL abusive and predatory in an oversupply situation.
It's clear asking a professional to do this and not being up front about paying $0 is unprofessional and a disrespectful waste of time, but I'm not convinced it's actually predatory or abusive. If someone thinks they'll get more than $their_cost in promotion value, they'll do it. If not, they won't. If no one does, the production company is going to waste a lot of time and burn their reputation trying to avoid what's…
I see the biggest problem with the email conversation that the person asking was not up front with the 0$ payout in the very first paragraph of the email.