There are certain. . . manners that you must have when posting. Here's some tips:
~You have your characters, other members have theirs. Do NOT write as their character without their permission. It is HIGHLY annoying and rude.
~Take turns posting if you are writing in a pair, alternate. If you are in a group, post in the order that has been made since the beginning.
~If the post says "for [blah]" Then don't post in it - it is a private topic for those two/three etc. If you want to to join, ask in a pm to one of them.
~If it says [OPEN] Feel free to join in. But . . . DO NOT MUCK UP THE PLOT. It seriously messes things up. If you ask the others in it and discuss the plot you'll find it much easier.
~Do not kill off another's character. Unless of course both of you have talked about it. Otherwise it creates problems for them.
~Please try to writing in proper English/American/whatever language you write in. Slang is NOT allowed unless it fits your character and although spelling mistakes are allowed (heck you'll see many in my posts) try not to over do it. The same as mistypes. Remember editing your post after is allowed/possible.
~Do not post with your character being accepted in that Category's profile page. Mods of that page will be the only ones to accept them. Smaller parts are allowed to pop up in posts though.