Since at least some people are participating in their first Play-by-Post campaign, I thought I'd put a quick posting tutorial up.
Generally speaking, we prefer players to make their posts in the third person--i.e.,
Good Style writing:
Firstname Lastname leaps up from his chair and pulls his blaster out of its holster!
and not
Bad style writing:
I leap out of my chair and pull my blaster out of its holster!
When your character is speaking, please use bold text, and preferably quotation marks. All caps is acceptable when yelling, although you can also make your text for the same effect, or smaller when whispering. Also its best to use italics for internal thought.
To make your text bold, use [ b ] without spaces, and use [ / b ] to stop using bold. Similarly, [ bigger ] [ / bigger ] will make your text larger. [ smaller ] [ / smaller ] will make smaller text as well.
For thoughts, italics ( [ i ] [ / i ]) are preferred. Used too frequently it can be a little much, but a well-placed bit of internal monologue can go miles for filling out character motivations, providing an ironic counterpoint to what the character is saying, etc.
Dice rolling is pretty easy; use [ dice= ] [/dice]. You can put anything after the equals sign, for example here I'll specify that this is a perception roll.
In between the [ dice= ] and [ / dice] you put the actual dice you want to roll. Format should be XdY+Z, where x is the number of dice, y is the type of die, and z is the modifier applied to the roll. For example, if your 18 strength soldier hit with a falchion you'd roll
Extra dice can be rolled, by adding additional XdY. For example, here's a investigator adding inspiration to his attack roll.
Note that you can roll dice that don't normally exist--1d2 for a 50/50 roll, 1d7 if you've cast mirror image and have 6 images up, etc.
You can also make multiple independent rolls with a single dice code by separating them with a semi-colon. Here I'm going to roll an attack roll and damage roll at the same time.