I get the feeling that a lot of the guys on the Champions Tour suspect that Langer and McCarron are still anchoring, but the USGA has made it nearly impossible to distinguish between the legal vs illegal standard. And perhaps that was by design, to remove themselves (and rules officials in general) from being the judge and jury... placing the onus on the players themselves to police it and deal with it.
I'm not aware of a single incident in which any player has directly confronted either of them about it, however. Maybe it has happened behind the scenes, who knows...
I go back to how incredibly thin the dividing line is between the anchoring/not anchoring standard. That makes it almost impossible for a fellow playing competitor to determine. Of course, that doesn't necessarily mean that it's not happening. It just means they're more willing to give the player the benefit of the doubt, especially if the player himself is truly the only one who knows if he's bracing his hand against his chest.
But it sure as hell looks like they're still anchoring to me from what I've seen on my television. Whether it looks the same standing 20 feet away - obviously I can't say.
Here's another aspect, as it pertains to if that was me in that situation... I would personally want to avoid doing anything that could bring my integrity under a cloud of suspicion. So even if I know in my heart of hearts that I've altered my technique just enough to comply to the new standard, I'd still personally feel like I'd always be under the microscope and my fellow competitors might suspect I've not changed anything.
Yet Langer continues to putt well most weeks and win a lot of tournaments. So there doesn't seem to be any negative pressure there regarding him feeling like he's being closely monitored and scrutinized every time he putts. So either he's not anchoring, or he simply doesn't have much of a conscience if he still is.
I would struggle putting well, legally or not, being in that situation.