Moon Race! (Duplicated)!

I have a question, dont know if anyone can really explain, but here goes:

I notice that when you don't participate on the moon race, you automatically get demoted? Why? Should you have to play?

I played a couple times and quit, because I don't think it's fair that the people you play with are not even near my level. I'm on level 128, and it's more difficult, so in all honesty shouldn't you compete with other in the same level? While others gain points I have to wait until a new level appears, thats not fair.

Can someone please explain.

Thanks