I look at it this way. If I was going to pull this stunt, I know I am going to get into a lot of trouble as is. So with ADS-B, I can at least let other planes

I look at it this way. If I was going to pull this stunt, I know I am going to get into a lot of trouble as is. So with ADS-B, I can at least let other planes see my GPS/Altitude and I can leave all the other data empty. This does not provide who I am, but shows at least some attempt to mitigate risk. The FAA are all about mitigating risk. Also less likely I would get a face full of prop. The person doing this could turn it back off at lower altitude to avoid people seeing where they landed.