You don't have to follow any of these common courtesies, it's your choice whether you want to be a scumbag or not.
It is your civic duty to mason or cult blues. To do otherwise is to endorse the suffering of blues.
As mistletoe, it is your responsibility never to help town. To do otherwise is to lack self respect.
As cop, wait until d2. To do otherwise is to be bad at mafia.
It is your responsibility to get over last game and avoid grudgekilling. To do otherwise is to be a nerd.
As a former mafia, you owe it to your brethren to keep names to yourself. To do otherwise is to spoil everything.
As werewolf, do not put every role in your will. How do you benefit from doing this? Why? Just don't.
To make a setup with bad roles like trickster is to be a douche. Let it be known.
There's nothing wrong with jointing, just know that it's half of a victory and you should feel disappointment.
As crier, you must be entertaining. To be otherwise is to bring shame to your role.
Suiciding is a crime, just like in real life. The punishment is being universally disliked.
It is proper and just to join the game hosted first. All games are the same anyway so they'll fill faster this way.
If I missed anything post it here, we wouldn't want any deplorables roaming around sandbox