The general thrust of Ruger's comments are correct. Tact and respect are essential. It's also important to consider that the research on internet boards reveals a tendency to be much more strong and forceful than when dealing with face to face interactions. We tend to be more blunt and even more obnoxious on the internet than we would otherwise. Correspondingly, people who read the comments tend to interpret them as much more aggressive than the author intended, likely because when we hear such comments, we can see from facial expressions and gestures that the person isn't threatening or on the attack. When they can't see you, they are much more likely to see your remarks as a swipe or cheap shot.

What this means is that restraint is the order of the day when making posts. We must be very cautious and use discretion. If "some opinions are so poorly informed or lacking a basis in real experience that you just gotta call folks on it," preserving their dignity and honor should be our aim, even when they are not being particularly dignified or honorable.