C[omp]ute

From: andrew cooke <andrew@...>

Date: Wed, 17 Mar 2010 18:03:17 -0400

A few times recently I have been frustrated by the "karma" system on Hacker
News.  Today I posted a short rant saying it was "broken".  But then I got to
thinking and decided perhaps *I* was the problem.  Maybe it's working as it
should (or at least, in a way that's hard to improve) and, instead of hoping
someone fixes the site, I should fix myself in some way.

Brain surgery being out of the question, I had a look at GreaseMonkey.  I've
never used GreaseMonkey, or jQuery, but it was only a few minutes work to
write something that hides both my karma (from the top titlebar) and thread
karma (displayed by each comment).

In fact, the code required, apart from GS + JQ boilerplate, is just:

    // sets the titlebar karma value to "bhk"
    $('body table:first td:nth-child(3) span.pagetop').contents().filter(
        function() {return this.nodeType == 3;} // text node
        ).replaceWith(' (bhk) | ');
    // clear the thread scores
    $('[id^=score_]').empty();

If anyone else wants to use this, you need to:

 1 - install GreaseMonkey
 https://addons.mozilla.org/en-US/firefox/addon/748

 2 - load the script
 http://www.acooke.org/badhnkarma.user.js

that's it.

I used the following resources:
 - http://diveintogreasemonkey.org/helloworld/divein.html
 - http://joanpiedra.com/jquery/greasemonkey/
 - http://jquery.com/

Andrew