MMR is stupid.

This should show you how broken the system is. Riot encourages you to play with people, and a number of people in the forums say if you are going to climb, climb with a friend. However, it throws off the MMR. I went on vacation for 1 week, my friend went from bronze 3 to silver 5. When I get back, we play again, and im still in bronze 3. Now he cant play anymore because his MMR tanks when we play. this system is stupid.