On this site i have seen:
Tim, CobraSplash, BEN, Most of the Smurfs except goldranger, Seen you, Most of the Australian contengency that were at the FF bash. Mr Sparkles....hehehe...
on GMF i have seen a TON of them and know most by site. All admins, 90% of the moderators, everyone that attended the GMF Cruise I which was about 40 or so folks. Several guys from the autox...chuck, Frankie, Gregg
on S10F i have seen Weasel, Pewter, boom, Dan P, Y2k and Fettus.
i know each user by name and could identify each of them in a line up. some i have never seen but know by name.
i know several from LS1.com the owner is 45 minutes away from me. I know several from Impalassforum.com I talk to Scott the owner almost weekly. i know the owner of cz28.com and turbobuicks.com he is a unique sort.
i know several GMofficials and some Ford official by name face and voice.
I am someone that keeps tabs on a lot of folks so besides this site i have my others to go to and some that are not mine to deal with as well. Most everyone that i know i talk to weekly via email, sites and IRC.
more info than you wanted to know i bet