as another noted, there should be no problem accessing it. I just double checked on tor and vpn. as for why it made it to the front page, all I can say is more often than not I'm surprised at what I post that gets attention over what doesn't. Last night I also posted an article about autism and parental age, was thinking that would get more buzz than this.
either or, more often than not I use hn as just a place to save obscure links with the additional benefit of reading insights from others when the posts get noticed.