When it comes to a moirail it's--as if you're compelled to take care of them. You pity them and take care of them and it's a really important part of relationships, because if out of control trolls don't have moirails then they'll end up destroying all sorts of things.

So if a moirail is a good moirail then it's worth listening to them, and Karcrab's definitely good at fussing over everyone he cares about, even if you have to get used to the way he says it.