Apparently from reading many of the comments on many climbing forums, Ivan Greene has been doing this for years, and when confronted has denied it. So they finally caught him on two videos with sledge hammers. Instead of rising to the challenge and leaving pristine rock for the future generations of climbers he's destroying the resource for his own self-glorification ego trip. He's written a guidebook to bouldering at the Gunks, so his behavior has a impact and sets an example to other climbers. I guess he changed his mind, his guidebook states clearly that chipping is never justified ... and apparently he is chipping all over the place.

The preserve needs to call a meeting about this as soon as possible, and we need to call them and express our concern so that they realize that we care about it and call such a meeting. There has to be some laws for this kind of thing. The Preserve has banned people from the Gunks before. I think they should have a meeting with people like this, find out who else knows about it, and who else is doing it, and ban all of them from the Gunks for at least three years so they can think about it, after which they can put up a bond for $1000.00. And then after 10 years, then perhaps the bond could be reduced to a lesser amount. If we do nothing the clipping will continue, it seems that it is an unstoppable habit now, like some kind of addiction.
In the past I have seen people using hooks and aid climbing, chipping off holds at the Uberfall, I told the ranger about it sitting not far off, he said there was no policy to enforce. I picked up a rock and told them that I was going to knock them out if they did not get off the rock. This is why there is a part of the hold missing on one of the Gill problems.
But I am not perfect either, but I can say that I have learned the hard way. As far as I know I was the *first* to have chipped holds. In the middle of the Near Trapps I pried a rotten piece of rock out of a crack with the end of a Chouinard hammer so I could place a small friend. This written up in a climbing magazine, [Pox in Vulgaria -- The Profit of Impurism A Commentary by Mark Robinson. This article was featured in Climbing Magazine in 1977.] where I was rightly publicly humiliated and ostracized by the climbing community. And I am very sorry about it, even to this day. Thankfully, I have been forgiven.

So, having been forced to do a lot of soul searching and thinking about the subject back in the 70's, I can say that I came to realize that, this is not the right thing to do. Sculpting rock the same way people do in a climbing gym is wrong, even if it means only using a crow bar, even if it is on Twilight Zone. If it is OK to chip in one place, it is OK to chip in another, and then there is no end to it. The reason we come up to the Gunks is to get away from this kind of stuff, isn't it? So I hope we are going to try and put a stop to this now.
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The Mohonk Mountain House and the Mohonk Preserve have done a great job protecting the environment thus far, but ... it's all down hill from here http://youtu.be/9AU8fMo8v4k.