It depends on the different circumstances,
I aint saying it as a generalisation that anger wouldnt be relevant to mafia, because sometimes, it can be a useful tool to force yourself away from acting scum and actually prove to be a very useful ally to the town. But the way I am saying is anger that is going against the actual person that wouldnt affect the game is seriously demeaning in general.
But knowing the post that TDM made, i presume it was to test my anger on the actual game itself, unless he actually meant it in general. "Bringing in Firebringer's Improvised Game to get more of a response from me"