There's a huge amount of judgment in your post. You have no idea what this guy was thinking at the time. Maybe he had family issues. In any event, he's got a right to his life. What says he has to "thank" the PGA guy or sign stuff for people? Why does that make him a bad person? You infer that he is "standoffish," which means "distant and unfriendly." Maybe the guy just doesn't want to interact with strangers who value names on hats. Maybe he really values his privacy.
Wow. Just such a huge, sweeping comment, and broadly tarring a whole group. BTW - every golfer - to a man, understands the value of Tiger to their paychecks. There is a reason that they all support him and only a couple guys came out and said what they thought of what he did to his wife and family.
It's really not a good thing to impute negative characteristics to men you've never met, and who you know virtually nothing about.
Post above says that BW committed a half a million to a public golf tournament. What the he11 have you done to make this world a better place that even comes close to what he has done already, still very early in his career?