It's on Hacker News because I find it interesting and it was new to me. Up voted.
It's a very interesting feat, but it's just a showcase of his realizations, unrelated to computers or science. His thought process or his planning for making such patterns would probably fit here more than this post.
I don't think it's a problem either, because such posts are rare, but I would be disappointed if Hacker News was filled with this kind of post.
[1] Can you make a business selling robots that let a ski resort decorate itself? Can you sell ads on unused winter pastures?
[2] If you consider each footprint to be a salesman's stop, then I think the answer is "Yes, but…"
IS NOTHING SACRED TO YOU PEOPLE?!!!