Stupid points of etiquette in the article.
more useful are these
1.Bathe before you go to the game.
2.Bring munchies, and munchies everyone likes.
3.Don't brag when you win or whine when you lose.
4.Remember the people around the table are your friends. If they aren't your friends, seek counseling you poor bastard.
5.Accept anything given to you with both hands.
6.Be pleasant. Say please and thank you a lot.
7.Unless you have a PhD AND are a world renowned expert in the field, AND have published at least a dozen books on the subject that have been critically acclaimed, AND are consulted frequently by business, government, science and academia, your opinion isn't worth doodley-squat and about as valid as movie or soap opera trivia. And even if you are all those things, always remember that all those entities could have utterly wasted their money on you and you could be wrong. Always remember this could be July 1939 and you are France.
8. Don't criticize peoples paint jobs, they do the best they can. Encourage them.
9. Bring minis and help out the GM. On the other hand if he's persnickety about packing away his stuff and wants to do it himself-- let him.
10. Always bring something for show and tell. It breaks the ice and adds to the interest and is entertaining to others. You never know when someone will find something interesting.
11. Support others in their projects and dreams. Never criticize or belittle unless you see a person blithely tripping into unmitigated, grand mal, end of the world. collapse of civilization as we know it disaster. The worst you should say is "Gee, that sounds interesting, but I'm skeptical. I tried that and could never get it to work. Maybe you can."
12. Always say hello to the wife or girl friend. Bring her a gift occasionally, flowers for the home, if she collects statues of cats, buy one and give it to her. Compliment her on her cooking even if it's wretched. You ate it didn't you, how bad could it have been.