So you may be asking, what are the rules to netiquette? Well, I wish I could sit here and tell you all of them, but I cannot. This is because they change from online community to the next. Everyone has their own ideas of what netiquette is. I can tell you a few standers though, so you will have an idea on how to netiquette. First, you should avoid cross posting. Also, when you are on a forum, try to not have a big electronic signature. Not everyone's computer is fast as your's, and that may take their computer a long time to load a lot of pictures. Try and use unabbreviated English, because not everyone knows English well enough to be able to read abbreviated words. As you can clearly see, this means that there are a lot of different ways to netiquette. It is no surprise to me that there is a lot because it has been around since 1988. Remember to talk nice to people and you should be fine.
There are lots of way to netiquette while you are online. However, you just need to remember some of the very basic stuff and you will be fine. First of all, do not start a flamewar with anyone. If someone says something bad about you, more than likely the forum mods will fix the problem. If you start fighting back with the person, then you become part of the problem and they are going to fix you too. The last thing that you are going to want to do is get kicked off of a forum, because sometimes you can be banned for life, and that is something that is hard to live with. Also, try not to talk down to people, this is just going to lead to a fight. Treat people with respect, and you are good to go.