I wouldn't say it was unsubstantive. It described a concrete situation with new information. Yes, it also had a note of complaint (pretty understandable assuming the information is true), and perhaps a bit of gratuitous showing off, but "falsely paint the author as a victim" seems harsh.
You can agree or disagree, but addressing another user the way you did is definitely outside the community norm here and a bannable offense, so please don't do that on HN again.
Also, since your account has so far commented on only one topic and done so rather pugnaciously, I should let you know that single-purpose accounts are not allowed on HN, and especially not accounts that use the site primarily for political battle.
You can agree or disagree, but addressing another user the way you did is definitely outside the community norm here and a bannable offense, so please don't do that on HN again.
Also, since your account has so far commented on only one topic and done so rather pugnaciously, I should let you know that single-purpose accounts are not allowed on HN, and especially not accounts that use the site primarily for political battle.