HN revolves around YComb and finding ideas that make great products. Someone has come up with a brilliant solution and someone else is saying they want to buy it. HN isn’t about “hacker” purity, it’s about thinking through cool ideas and maybe finding a startup along the way.
Building your own, idk, mechanical keyboard? Hackerish thing to do, sure. But buying someone else's cool design is not against "the ethos", that's a silly thing to say. Supporting artisans in their craft is Good, actually, I don't see anything about this design which make it different that way.
that's a weird notion of hacker purity. did you write your own kernel and compiler and web browser, on your own CPU that you built from transistors you made in your parents garage? and then connected to an Internet of your own creation? or did you "outsource" some part of that process to others?