Originally Posted by
Sen
No. Unless you play against your wincon while being part of a team, there's no gamethrowing.
A Jailor executing a confirmed Mayor "for the lulz" is gamethrowing, an Arsonist who decides that he'll only douse and burn Mafia suspects is not.
Being able to win with another faction is irrelevant; you're there to achieve your team's win condition, or to simply have fun, if you don't havce a team. If your team consists of yourself and nobody else, you are in no way forced to make the game easier for others, regardless of whether you can win with them or not.