How to counter Pinhead in DbD
Play like he's an M1 killer with no power, and once every now and again, solve his box.
Or, pick up his box and never solve it. It's like Victor with less problems and doesn't wound you for having it.
I'm hoping they do something about this, but as it stands, he makes Tricksters PTB version seem strong. They did such a great job with his visuals, and his chain mechanic requiring aim and mechanical skill is great, but the payoff doesn't exist.