Grab the Tampermonkey (Chrome) or Greasemonkey (Firefox) userscript manager and click "Raw" - it will open a prompt to install, since the extension is .user.js
Edit: After 30 seconds of editing, it now removes the "Recent comments" sidebar, too. Knock yourself out.
Edit 2: Now it completely gets rid of all hints that comments might exist on hackaday, in addition to the comments themselves.
But... But that's not the point. Once you learn to filter the comments in your mind, you can sometimes learn from the comments as much or more than you could learn from the article itself.
Other than that, great hack and I see how that could be useful!
follower number 69!