I recognize a lot of the same usernames, and for the most part in a good way. There's only a few that I've seen multiple times that do nothing but troll, but they don't seem to stay too long. I don't really stalk people's profiles for pictures and stuff, but from the small icons we get it does kinda surprise me how many good looking people there are here that need dating/relationship advice (I learned something new I guess).
I'm not gonna name names, because it's all a matter of opinion for who is good, bad, hot, smart etc, but I do feel like I know a little bit about some of the people here, and I enjoy getting feedback from them
I generally recognize a good portion of the users fairly easily, but that doesn't mean I really know them all that well. Plus, I have the added advantage of having been on the site for a couple years now, so its probably easier for me and the rest of the older users than it is for some of the newer ones.