Only if he can make good on it. Lots of folk have been naming themselves kings where I'm from. Most of them are dead now or so broken as to make no matter. Each one of them was dangerous, but only for the folk caught in the middle of it.

[People like Gendry and those in the Riverlands. He still had a deepseated resentment associated with all the needless death and carnage he had seen come from all that.]