After reading http://runegear.net/Thread-Post-Tagging I suggest that maybe the user gets a notification if they are tagged, so that they can see what they are tagged in.
So that this doesn't get abused, a user should only be able to tag one person one time in a thread.
If you do or don't like this suggestion, post a constructive thought please.
Thanks for taking your time and reading this.
Don't worry, I didn't steal your idea.
This took me more than two minutes to write, I'm busy at home today lol.
Please edit your post to make it higher quality.
I always pay attention to small things on a website, but the big things matter too.
Maybe I'm just trying to be a perfectionist, but this could be nice.
Perhaps, or there could be a separate notification tab, that will update after you refresh the page.
This notification tab could include reputation changes, post tags, warnings, and other things.