But in the Church of Asmodeus in all ranks short of Gorthoklek, Lrilatha, and Aspexia Rugatonn, there is nobody who is allowed to know about the idea of a valid argument. It is a heretical concept, if you're not Aspexia or her appointed heir, because it implies that there is an arbiter other than the Church's say-so of what is good to believe.
And no mortal human of human born can really believe the Church is the arbiter, in their heart of hearts. But they can be impressed in their hearts with power, and be convinced to look away from truth; toward games of wealth and cruelty, that they have been told that they are winning.
That game's obvious and proper objective is to make sure that you and everyone else end up believing what it is advantageous, to you, for you and everyone else to believe. In that game, a delicious insult is most certainly a legal move, and as good a reason as any to end up believing or disbelieving something, because it is informative about which side is winning.
To believe useful things is what is useful, by the very definition; and it is also urbane, sophisticated, clever, and wise; and only naive losers nursing their sour grapes pretend they are doing anything different.
It is one of several ways that the Church of Asmodeus has converged with postrat Twitter.