1. Post early. Some of the players here over the years have had . . . creative . . . approaches to spelling, punctuation, and grammar. We don't care. We'd rather see a post the next day that's messy and misspelled than a post a week late that's immaculate. This is an RP, not your next submission to Random House.
2. Post often. Unless you are in combat, there are no "turns"; you can always post as soon as you have something to do or to react to. This applies to the non-combat aspects of combat as well. Since the list of posts to react to is just going to grow if you spend too much time trying to perfect your responses to the earlier ones, post early as well.
3. Color is good. We're not going to provide a lengthy description of every room you walk into, especially since the group will sometimes be splitting up into a number of separate threads. Fill in the details for us from what we've given you in the IC and OOC threads. Make it interesting: Give us random musings from your character. Order a drink at the bar. Tell us how it tastes. Take up space. This is a story, not a series of numbered combat actions.
3a. Balance in all things. Yes, #3 is going to sometimes contradict #1 and #2. The more people in the scene, the more important #1 and #2 become; the more spread-out the group is, the more important #3 becomes. In the same way, the first posts in a scene are going to need more color than later posts. Use your head and do what you can.
4. God-mode is bad. Even in player posts, narration is supposed to be infallible. If your narration says that your character thinks that the plan / enemy combat action / whatever is doomed to failure, that's great; if you write narration explaining that it is doomed to failure as a narrative fact, you have impinged on our ability as GMs to make that determination. Similarly, do not complain in narration when we say that your plan / combat action / whatever fails and you think that it should have succeeded. (You can disagree with us OOC, of course, but please don't whine.)
4a. . . . sometimes. Feel free to NPC NPCs when reasonable and necessary. Unless the bartender has been revealed to be an enemy agent—it wouldn't be the first time—you can assume the the bartender gets you your drink when you ask. Even if the bartender is an important NPC, we might just make an OOC note in the thread or on the OOC board to the effect that the bartender complies, letting you handle the narrative duties. In some special cases, we might even just tell you the outcome of a scene and let the players involved work out the specifics. (E.g., downtime scenes or transition scenes.) In short, if it doesn't have a major effect on the outcome of the plot, it's probably safe to do. Also, we're not going to get terribly angry at you if you screw up in good faith.
5. Read the OOC thread. The fact that some posts in the IC threads may contain OOC notes does not make the OOC thread obsolete or redundant; we simply split up where we post OOC information by the specific nature of that information and what's most convenient.
Two examples of posting situations
1. Two of you discover that your characters are fun to RP together. You spend an entire month playing out a 25,000-word scene of the two of them eating breakfast. We would consider that a job well done.
2. Five of you are in a scene together, but only two or three have posted recently. Those two or three keep posting and try to move the scene forward on their own. This isn't just admirable, it's your duty! Not only can you not let the other active posters down by letting the scene stagnate, but the inactive posters will not be impressed by a dead scene when they check back. In fact, the inactive posters may just be waiting for something to more directly involve their characters; it's your job to give them more to react to.
We are not normally going to give you less than a week to post—although if everyone's posted, there's no requirement that we continue to wait—but after one week, we may post the next time we have the time and energy. That we might take longer on some occasions is a gift or a delay, not a right.