Some advice on what a character should be and shouldn't be are fair, although they are pretty obvious and already stated in many places (stay in setting, try to be consistent, etc.). A reminder at character creation, in the tutorial and in loading tips would do no harm.
However, I'd concentrate my etiquette thought and questions on how to use the PS tools in a common manner. The tools themselves can always be improved later to reduce the burden that an etiquette can be. Such tools include:
- the chat tabs, as already described
- the Auction tab, which is supposed to replace an IG message board, so could be used as one
- the description, which should be short, purely descriptive, and exempt of any OCC information
- the /challenge command, which I admit I have a hard time dealing with, lacking an appropriate protocol.
- the /away command, which could be set in a more visual manner; maybe we turn to face a wall before going away, or something. In the future, the command could turn on/off some snoring automatically, but presently, I just feel silly to talk to someone who isn't even there.
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For the Main and Auction tabs, I'd like people to refrain from using thing like 10K and q300. (The latter would actually disappear if quality figures were never visible, although still there). For those who really think that q300 is much better than q299, I suggest the use of /tell for the OOC details of their transactions. Actually, same thing for merchants' catalogs of products.
We could also try to agree on how we deal with the parts of PS which are not implemented yet, as well as other sources of potential conflict. To agree on a line of conduct may avoid constant arguing later. With such a previous agreement, one would stick to it even when, some day, one happens not to be happy with it. By not reacting to frustration according to one's mood, but instead to a pattern chosen in a thoughtful moment, the game flows smoothly and the atmosphere is kept playful. It is after all, the basic rule of a table RPG: the GM has the final word, and one doesn't insist on arguing with the GM during the game. In PS, this final word can be ours, if we spell it beforehand.
The most common sources of conflict are law enforcement and free PVP zones. There are probably others that I'm not aware of. For PvP zones, my conduct is simple: anything that happens there is fair game. For law enforcement, some devs made very clear statements, and I'd sign the agreement right away. In a possible situation of disagreement in game, I'd stick to the contract regardless of being right or wrong, for the sole purpose of not being disruptive, keeping the debate for a more appropriate time and place.
Also, since crafting does require some OOC explanation in game, crafters could come up with an improved approach to the problem by sharing their experience, and teach that as well to the beginners, for they will also be called for help some day. Not sure if that was clear, so, basically, as crafters use less OOC to answer newbies, they also teach the newbies how to teach.