Fair comment on the handling of the fish but lighting someone up in public will only ensure that they stop posting. You could have as easily sent a PM with your comments and also explained a lot more tactfully.
It is always easy to be the old guy in the balcony criticizing everyone else. Since you obviously are an experienced fisherman, why don't you post more and share some of your knowledge so that everyone can learn?
The forum's strength is people sharing and learning from each other, not waiting until they see someone doing something wrong, and then publicly shaming them. My 3 cents.