As long as it's legal, it's legal. Picking on close personal friends is, of course, a different situation, but I can think of only one person I know that anchors. Once anchoring is no longer legal I'll still not say a thing unless there is some sort of actual competition going on, and even then I would be more inclined to point out what I perceived as an infraction to the powers that be than to confront a fellow competitor. I don't complain if somebody takes a mulligan when everyone's out having fun and drinking a couple of beers on a sunny afternoon, what do I care what kind of putter they whip out?
In fairly short order this will become a non-issue anyway. Now the clubs are illegal the manufacturers won't be making them and I would expect that most of the tour pros will be more than willing to use the clubs their sponsors want them to help promote, no matter the stand of the PGA. The PGA is important, but it is not the tail that wags the dog.