[Confusion]

Your comment is devoid of argument.

[plankers]

So is yours.

[Confusion]

Indeed, because I'm not arguing any position in the debate, but offering an observation whose truthfulness anyone can judge on their own.

The parent, on the other hand, was responding to someone in an attempt to prove them wrong. By not saying anything that engaged with what the grandparent said, they failed at that.

So I know what I am, but what are you?