Voluntary TPR - how does that work?

In WI no incentives are allowed. They go out of their way to tell the BPs that voluntary gets them no extra points since the state does not allow open adoptions anyways. Our CW talked to the BPs about it. birthmom decided to do voluntary and signed that that was her intention. Six months went by with no word from BD so they filed for involuntary against him. Both showed up in court and both did voluntary. I think ultimately they did it to avoid further child support payments and to get out from under the system entirely.