You know how they love/need to draw everything out. I can't remember the last time we saw someone record a person and use it to their benefit. Ava did during the first custody battle, where Sonny said he'd fill her so full of holes, they would not be able to recognize the body! It worked because when Scott played it for the judge, she won sole custody.
Look at Peter's reign of terror. No one recorded him and he blackmailed: Finn and Anna.
Drew has blackmailed: Curtis, Nina, Portia, and tried it with Carly, Sonny, Michael.
