Basically, it is an advice column, written by-you guessed it!-Stannis Baratheon.
Submissions so far:
As in, "Stannis, my brother-in-law hasn't paid back a loan I made three years ago. I don't want to cause trouble with my wife's family, but I really need the money."
Stannis then answers, "He is no brother to you. He is in your debt, and refuses to pay what you are owed. Honor demands an answer; remove one of his fingers for each week the debt is not repaid."
Dear Stannis, a boy has forsaken his marriage promise to my daughter and wed another. What do I do?
Dear Walder, he is a liar. Take him out!
Next week and next twenty chapters questions are asked by Tyrion. One question at least.
Dear Stannis, I married my sister to a barbarian warlord. In exchange he promised to give me an army to take back my rightful place. Now my sister is knocked up and all he cares about is her and the baby. He has completely gone back on our deal! What should I do?
Dear Viserys, he made you a promise. You need to make him remember who he is sworn to. Maybe try something drastic, a small show of force? But be cautious, those barbarians can be brutal. Try not to get yourself killed.