I guess to me it feels like wording you wouldn't have accessible unless someone had been to therapy of *some* kind. Usually when you see letters about dads with anger and violence problems, they're describing it different way.

(It kind of feels like this might be a case where he went to some kind of therapy at some point - who knows, could have been court- or job- ordered anger management or something - and then decided he was "better" and used the diagnosis as an excuse to be "struggling" forever after that. Which might also explain why LW is acting like this is a situation that is over? But I don't think the letter really tells us. LW is definitely leaving a *lot* out.)