I don't fully agree with it — for one thing, I think you can develop taste in a field without actively participating, but you have to engage with it beyond passive consumption. Basically: I think it's possible to be a good movie critic without making movies yourself. Given the collapse of the friction/effort side of things, I think that is really worth unpacking.
I have to say I find the debates about the post's style and em dashes pretty disheartening. There have always been plenty of good jokes to be made about HN's culture, but wow. For a community that has been snarky about fools counting lines of code for 40 years to be out here counting em dashes is pretty damning.