Is that the new system? You must personally affirm a crime to be a crime, put warning labels on yourself and your property, if you want the protection of the law.
Opt in or the law is not for you.
If they aren't into snowmobiling or ATVs, they often shut down any trails going through their property.
They basically ruin a way of life for the locals who used to hunt, fish, and use OHRVs on the land.
Now they have to post their property, no matter how tiny it is in NY to try and keep it.