Add Tagging to the Keyword Matcher
Example content which would otherwise be hard to find:

Implementation Suggestion
Perhaps this is a general requirement, and incoming posts could be scanned for references to yourself and/or to other people, and then have specially-formatted Tags applied to them in order to surface them to the site user (i.e. Myself) in a Wordpressy kind of way?
Then we could have a Friends-plugin feature which would be a simple table of:
keywords or regexp|tag to apply
...with options to add more?
There are already keyword notifications (which I realized recently fail for your own URL since it strips all tags before checking for it and the URL is usually inside an HTML tag, I need to rework this):

It could be interesting to make this more versatile like you suggest so that you can choose what should be done when a keywords is matched.
You can find the Keyword Notifications in the Friends Settings and they are also exposed in the Notification Manager:
