All of JWZ's links do that, because he chose to break the internet for specious reasons. I doubt it even achieves his aim of reducing traffic from HN.
I've contacted HN staff about disabling autolinking for URIs in his domain for the reason you state. They're effectively no different than any other "spammy" link due to his HN-specific redirection.
You could also take out <meta name="referrer" content="origin"> from the pages, then there's no special casing and no referrer (in the https case). Aside from enhanced privacy it might serve as a disincentive to game HN since it becomes less obvious how much traffic HN brings in.
That's not hotlinking, that's just linking. Hotlinking refers specifically to embedding content (e.g. an image or iframe) from another host.
JWZ, despite being one of the main engineers at Netscape, does not seem to know what hotlinking means, and is (a) happy to break the web, and (b) happy to look like an asshole by making penises pop up on random people's computers because they didn't know "don't click a link to this random dude's site from HN".
HN mods, any chance of disabling autolinking for JWZ sites?
Your link is blocked too. As long as you paste it into a new tab you're fine. I'm not going to bother looking up the specific tweet he said this in but jwz has "no time for HN"
Found it:
"@sloverlord Hacker News is a steaming cesspool and I don't have time or desire to deal with their bandwidth demands, so I just block them." ~jwz
https://twitter.com/jwz/status/665658171415859200
Not even that, I had the fortune of glossing over this gem earlier today:
https://www.jwz.org/blog/2015/12/zuckerberg-has-not-donated-...
EDIT: apparently the site I linked doesn't like linking from HN, sorry folks I had no idea.