No, they are not all like this and they do not have to be. An example is the IDPA Forum. Gun enthusiasts and competition shooters will know what that is. Everyone is required to sign their posts with their real name, either in signature or simply at the end of the post. It keeps everyone civil and what should be a conversation with exchange of ideas does not erupt into a battle. Most important. If someone doesn't have knowledge of the topic, they don't post just for the sake of posting something. Also, the mods keep a very close eye on it and squabbles simply are not allowed to manifest into a full scale fight.