a. Treat others as you would like others to treat you. aka don't be a dick to someone.
b. Participate in good faith, be respectful, and do not insult groups or others. Remember, there is a person on the other side.
c. If you're being toxic or just here to cause trouble, we will remove you from the community. We have a zero-tolerance policy for trolls and rabble-rousers, just like r/SpaceX and the no-assholery rule.