What I'm on about is that you just made a personal attack. And now you're playing obtuse about it.

I understand you found my comment to be juvenile, but I respectfully disagree. If you cannot make your point without personal insults, maybe online forums aren't your thing. When you see someone you think is being juvenile, responding in kind is not helpful and it's not a defense of your behaviour, even if I were being juvenile first.

If I were to think to myself, "That was a shitty thing you just did to me, now I'm going to be shitty back to you," it would not help either of us, but I would be justified according to you.