Possible to filter "Recent community chat topics"?

Well, I may not be grumpy, but I was looking for something to code, so I wrote a prototype of a userscript that does this.

You can find it here.  Once installed, edit the portion at the top of the script to hide activity from whatever boards you feel like.  

Let me know what you think (and if it even works…  I tested in Chrome and things seem fine, but well… Programming, you know?).

As an additional note, the list will behave slightly differently than the default one because the script doesn’t take into account how post edits bump threads.  This information isn’t represented on the home page for each board, so I don’t know how to get it.