I'm really glad someone resurrected this thread so that I could be made aware of it.
I've been struggling with some of these issues as well as I play more games. On the one hand it is definitely comforting to build a reputation on someone, take notes on whether they're trustworthy, their behaviors, their time zone, etc. On the other hand, I can see how this "metagame" can warp the game itself. I didn't think I would be pro-anonymity before, but after reading through this thread I think it is an important idea.