I first began using the term 'muppet roulette' about the random lfgs that popped up in WoW when they brought in the random groupinator. Pvp in SWTOR offers its own unique version of muppet roulette, sometimes dreadful, sometimes inspiring.

Not sure what other people make of the recent segregation between 50s and the rest of us, but I think it must be an improvement as it prevents the onset of quite such imbalanced groups. I'm not sure if SWTOR will go the way of WoW with bands at each ten levels, but I guess the fact that they have already changed the structure of pvping shows the popularity of the challenge.