1. Level up. It's rough finding a game to enter, but it's the right thing to do.
2. Never flame on the main board. It's undignified.
3. Never answer a flame on the main board. See rule 2.
4. Quit playing to win all the time. Teach some newbies how to stay alive past turn 200.
Your win/loss record doesn't impress as many players as you think it does.
5. Don't challenge lower level players and don't dignify a challenge from lower level players.
Exactly what do you have to prove?
If you start conducting yourself this way before reaching level 9, then you'll gain the respect of your fellow players
and have a more enjoyable experience playing the game. By the time you reach level 9, this should be ingrained.