Thank you! That is all I am trying to say. If you your game is going haywire the last thing you need is some guy pointing out what he perceives to be the problem when you did not ask for advice. The thought of a 28 handicap handing out unsolicited advice makes absolutely no sense at all.
I play with a guy who is self taught 9 handicap. His address on the tee looks like it will go way right and out of bounds. Yet his drives are generally in the fairway with the prettiest little draw that you would die to have. Now if he starts losing it to right for some reason due to lost mechanics what good could it do to tell him that he is aiming too far right? I am a firm believer that offering advice during a round is 99 % counter productive. Particularly unsolicited advice. Call that snap-judgement all you want.
OK, how about this scenario:
What if the next time you go out to play with this friend you notice that he seems to be lined up straight AND he hits "the prettiest little draws" that start down the left side and then either go into the left rough or OB. Knowing what you know about your friends usual tendencies compared to what he's doing that day, would you actually NOT speak up? Would you think to yourself "Weird, he usually aims way further to the right and ends up in the fairway, and now he's aiming down the middle and ending up left but, hey, I'm a worse golfer than him so I couldn't possibly be of any help here, so I'm just going to keep my mouth shut?" I sure hope not.
I think this is closer to the scenario that @Wisguy was describing. If you can't see how a "worse" golfer could still sometimes be of help to a "better" golfer in a situation like this, then I don't know what to say.