It's certainly concise but I still remain unconvinced a human wrote it.

> It's a weapon disguised as helpfulness.

The source code is without a doubt AI (it's got a comment for the "<!-- Canonical URL -->"), so I guess one would have to assume they prepared the entire document beforehand, then fed it to Claude and instructed it to use that copy exactly.

...or they prompted "make me a site which tersely criticizes people who post AI slop on Slack, use the term slop grenade and style the site like nohello.net"

Eventually you just get a sense for these things.