Hm, I was thinking about the same earlier.. when I followed Usenet groups I would let my newsreader colour-flag threads and postings by certain people so that I could consentrate on those threads, otherwise it became impossible to wade through it all to find the nuggets.

If I could somehow 'mark' threads where certain folks posted I could possibly get through the 20 pages of threads a bit quicker. And I could possibly come to read some of those threads I skip now, due to the useless titles some people set (e.g. "Need help with a problem").