Awasu has long passed the point where I can easily keep every detail about it in my head If you asked me exactly how a particular feature worked, I may well not be able to tell you off the top of my head and would have to go to the source and look it up. And I certainly can't remember every little plugin and other extension I've written over the years.
I was working on the 2.3 release today and was a little puzzled to find a rather old note in my to-do list to "update the documentation for the FilterFeedItems plugin." I had no idea what this plugin was but a bit of poking around turned up this, a plugin that I wrote about 18 months ago, in response to a user's request to be able to filter feed items by keyword. It seems to have been missed when we moved all the plugins and other extensions over to the wiki.
A lot of people have been asking for this feature and we'll be adding it once 2.3 has been released but the FilterFeedItems plugin will certainly do the job until then.
I may well "amaze myself with the power and flexibility that Awasu's plugins and channel hooks give you" but the old girl is certainly embarrassing me by highlighting my failing memory