1. Be polite, respectful :
This means no insults, personal attacks, ad hominems, flames, berating, and all other forms of hostile behavior. Do not attack people - if you can't argue with someone, ignore them. Try to be civil at all times.
This is especially important when dealing with newcomers, arguing and criticizing someone. - This rule is stupid and can largely be ignored unless things are taken too far, and if you report an Admin's post for violating this rule you will probably just annoy people.
2. Do not force your opinions/criticism :
Do not behave like your word is law and that all ships must be made and balanced to your specifications; do not try to force your building style. When giving opinion, use logical arguments to support it.
3. Keep offtopic short, simple :
If you have something to say that is not directly related to the topic of a thread, make it brief and terse, ie. no more than a few sentences. Particularly, do not make posts solely or mainly for this purpose. If you have an offtopic question for someone, pm them.
4. Do not post if you don't have anything useful to say :
Do not make blatantly irrelevant or useless posts. If you don't have any useful commentary or content don't post, and make your comments worthwhile. Simple praise is considered worthwhile, providing that it doesn't end in single-sentence 'I like this ship.' posts.
5. No backseat modding :
Do not attempt to enforce rules on your own. Report the culprits (using the little exclamation mark button) to the moderators instead - this is actually encouraged. You can remind people of rules, but only if this is not the focus of your post and you adhere to Rule 3.
6. No thread hijacking :
Do not try to change the course of a thread to suit your own purpose. For example, posting your own ships in someone else's thread without his agreement is unacceptable.
7. No bringing out problems/grudges in public :
If you have a big problem with someone, do not talk or even mention it in public. Either take it to the pm or contact moderators.
8. Problems with moderation :
If you have a problem with the way forums are being run, do not talk or even mention it in unrelated threads. Contact the staff instead, in private.