it means exactly what it means.. it means you beat someone of a lower color and haven't yet lost a bunch to someone of the same color. It's not unusual for strong players to not be pink, because strong players aren't going to dodge because of color. and Some people get pink and then dodge 100%. it is very easy to cheat the system...
But when I play against a Dark green, Dark Blue, Green, I know what I'm in for. Anything else is ok.