It's really just a matter of being around for a while. I've had Badspot, kompressor, Ephialtes, Facechild, Nitramtj, Wedge, entrepreneur in, and Bones4 on my servers, but they're all just about equally spaced out. kompressor joined in v8 for a few seconds, I only remember it because I was a kid and got excited. Badspot will pop into popular servers when new versions come out. I was friends with Ephi. Nitramtj followed some of his friends to my server at least once; Wedge and I were friends for a while; entrepreneur in was friends with RotB back in the day and a lot of them were friends with me so he came over a bunch, and Bones4 is active sometimes. The only reason it doesn't happen much anymore is because a lot of them don't play anymore.