I definitely think an official ettiquette should be established. Building on Germs and oblix's responses (and collecting them into a list), my suggested rules are as follows:
1)
If bạn know the answer to the question, don't ask. This should be fairly clear already, but các câu trả lời are for các câu hỏi bạn NEED ANSWERING, not ones that bạn already know and want to câu hỏi kiểm tra others. In fact, believe it hoặc not, we already have a place where bạn can do that! It's called the "quiz" section.
2)
If you're asking an opinion, make a pick instead. I've already seen some opinion related "Answers" questions. I'm not talking about, "What's the best way to make mac and cheese" kind of opinions (those can be "Answers" questions), I'm talking, "Did bạn know that the actress who plays Sharon appears in two episodes after her character's death?" These are not "Answers" các câu hỏi because there is no câu hỏi being asked. All a người hâm mộ can do is say, "Yeah, I noticed," hoặc "No, I didn't." This is probably better served as a pick question, when there aren't multiple các câu trả lời hoặc explanations that can be employed.
3)
If bạn don't know the answer, don't answer the question. Responding just to say, "Oooh, I was wondering that, too!" hoặc "Oh, I don't know, but I hope bạn figure it out" are not helpful to the asker, hoặc anyone else for that matter. Either add your own answer to the question, hoặc add on to what someone has previously said.
4)
If it's been said, don't be a broken record. If a câu hỏi has been sufficiently answered, and bạn agree with that answer, instead of answering again, VOTE FOR THAT AS THE BEST ANSWER. Makes sense, doesn't it? bạn agree, and it probably is the best answer. Don't be a glory whore and repeat what someone's already said.
5)
If bạn think someone has it wrong, correct them. Just because a câu hỏi has been answered several times doesn't mean it's necessarily been CORRECTLY answered. Feel free to add on to other people's các câu trả lời (like I'm adding on to germs and oblix's right now) hoặc to correct someone whose answered incorrectly. It's OK to politely say, "Actually, the film was released in June, not October." People won't beat bạn with a stick.
And if anyone wants to add to these rules, bởi all means do so.
EDIT: At germs' urging, I
link.